Jeep P1388 ERROR CODE





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  1. #1
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    Question Jeep P1388 ERROR CODE

    Re-Built the Jeep's engine, and fitted it last week. Did not realy use it since.
    Started "new" engine and heard a exhaust leak, switched it off immediately, i then sorted out that leak and tried to start it again, it started up very easy, but then died, and could not get it going again, i checked the fuses and found ASD fuse blown, replaced that, but nothing!
    Asked Bosch to do a diagnostic test; this is what they found;
    Error Code: P1388, "an open or shorted condition detected in the ASD or CNG shutoff relay controle curcuit"
    "An open or shorted condition detected in the auto shutdown relay curcuit"
    I spend the hole day, to try and sort this out, but nothing!!!
    Anyone with some experience to point me in a direction??
    If not................i am on my way to the STEALERS!!
    V8 Suzuki SJ410, "Zukzilla"
    Jeep Cherokee HO 4.7 V8 Q Drive
    Tata Lexus V8 Conversion.
    Volvo S60, Cherry QQ
    Jaguar 500 4x4 quad

    Occupation: Brake & Clutch Specialist.

  2. #2
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    POWERTRAIN CONTROL MODULE

    DESCRIPTION - PCM
    The Powertrain Control Module (PCM) is located in the engine compartment. The PCM is referred to as JTEC.

    MODES OF OPERATION
    As input signals to the Powertrain Control Module (PCM) change, the PCM adjusts its response to the output devices. For example, the PCM must calculate different injector pulse width and ignition timing for idle than it does for wide open throttle (WOT).

    The PCM will operate in two different modes:
    Open Loop and Closed Loop.

    During Open Loop modes, the PCM receives input signals and responds only according to preset PCM programming. Input from the oxygen (O2S) sensors
    is not monitored during Open Loop modes.
    During Closed Loop modes, the PCM will monitor the oxygen (O2S) sensors input. This input indicates to the PCM whether or not the calculated injector
    pulse width results in the ideal air-fuel ratio. This ratio is 14.7 parts air-to-1 part fuel. By monitoring the exhaust oxygen content through the O2S sensor,
    the PCM can fine tune the injector pulse width. This is done to achieve optimum fuel economy combined with low emission engine performance.

    The fuel injection system has the following modes of operation:
    ² Ignition switch ON
    ² Engine start-up (crank)
    ² Engine warm-up
    ² Idle
    ² Cruise
    ² Acceleration
    ² Deceleration
    ² Wide open throttle (WOT)
    ² Ignition switch OFF
    The ignition switch On, engine start-up (crank), engine warm-up, acceleration, deceleration and wide open throttle modes are Open Loop modes. The idle and cruise modes, (with the engine at operating temperature)
    are Closed Loop modes.
    IGNITION SWITCH (KEY-ON) MODE
    This is an Open Loop mode. When the fuel system is activated by the ignition switch, the following actions occur:
    ² The PCM pre-positions the idle air control (IAC) motor.
    ² The PCM determines atmospheric air pressure from the MAP sensor input to determine basic fuel strategy.
    ² The PCM monitors the engine coolant temperature sensor input. The PCM modifies fuel strategy based on this input.
    ² Intake manifold air temperature sensor input is monitored.
    ² Throttle position sensor (TPS) is monitored.
    ² The auto shutdown (ASD) relay is energized by the PCM for approximately three seconds.
    ² The fuel pump is energized through the fuel pump relay by the PCM. The fuel pump will operate for approximately three seconds unless the engine is
    operating or the starter motor is engaged.
    ² The O2S sensor heater element is energized via the O2S relays. The O2S sensor input is not used by the PCM to calibrate air-fuel ratio during this mode
    of operation.

    ENGINE START-UP MODE
    This is an Open Loop mode. The following actions occur when the starter motor is engaged.
    The PCM receives inputs from:
    ² Battery voltage
    ² Engine coolant temperature sensor
    ² Crankshaft position sensor
    ² Intake manifold air temperature sensor
    ² Manifold absolute pressure (MAP) sensor
    ² Throttle position sensor (TPS)
    ² Starter motor relay
    ² Camshaft position sensor signal
    The PCM monitors the crankshaft position sensor. If the PCM does not receive a crankshaft position sensor signal within approximately 3 seconds of
    cranking the engine, it will shut down the fuel injection system.

    The fuel pump is activated by the PCM through the fuel pump relay.
    Voltage is applied to the fuel injectors with the ASD relay via the PCM. The PCM will then control the injection sequence and injector pulse width by
    turning the ground circuit to each individual injector on and off.
    The PCM determines the proper ignition timing according to input received from the crankshaft position sensor.

    ENGINE WARM-UP MODE
    This is an Open Loop mode. During engine warmup, the PCM receives inputs from:
    ² Battery voltage
    ² Crankshaft position sensor
    ² Engine coolant temperature sensor
    ² Intake manifold air temperature sensor
    ² Manifold absolute pressure (MAP) sensor
    ² Throttle position sensor (TPS)
    ² Camshaft position sensor signal
    ² Park/neutral switch (gear indicator signal—auto. trans. only)
    ² Air conditioning select signal (if equipped)
    ² Air conditioning request signal (if equipped)
    Based on these inputs the following occurs:
    ² Voltage is applied to the fuel injectors with the ASD relay via the PCM. The PCM will then control the injection sequence and injector pulse width by
    turning the ground circuit to each individual injector on and off.
    ² The PCM adjusts engine idle speed through the idle air control (IAC) motor and adjusts ignition timing.
    ² The PCM operates the A/C compressor clutch through the clutch relay. This is done if A/C has been selected by the vehicle operator and requested by the
    A/C thermostat.
    ² When engine has reached operating temperature, the PCM will begin monitoring O2S sensor input. The system will then leave the warm-up mode
    and go into closed loop operation.

    IDLE MODE
    When the engine is at operating temperature, this is a Closed Loop mode. At idle speed, the PCM receives inputs from:
    ² Air conditioning select signal (if equipped)
    ² Air conditioning request signal (if equipped)
    ² Battery voltage
    ² Crankshaft position sensor
    ² Engine coolant temperature sensor
    ² Intake manifold air temperature sensor
    ² Manifold absolute pressure (MAP) sensor
    ² Throttle position sensor (TPS)
    ² Camshaft position sensor signal
    ² Battery voltage
    ² Park/neutral switch (gear indicator signal—auto. trans. only)
    ² Oxygen sensors
    Based on these inputs, the following occurs:
    ² Voltage is applied to the fuel injectors with the ASD relay via the PCM. The PCM will then control injection sequence and injector pulse width by turning
    the ground circuit to each individual injector on and off.
    ² The PCM monitors the O2S sensor input and adjusts air-fuel ratio by varying injector pulse width. It also adjusts engine idle speed through the idle air
    control (IAC) motor.
    ² The PCM adjusts ignition timing by increasing and decreasing spark advance.
    ² The PCM operates the A/C compressor clutch through the clutch relay. This happens if A/C has been selected by the vehicle operator and requested
    by the A/C thermostat.

    CRUISE MODE
    When the engine is at operating temperature, this is a Closed Loop mode. At cruising speed, the PCM receives inputs from:
    ² Air conditioning select signal (if equipped)
    ² Air conditioning request signal (if equipped)
    ² Battery voltage
    ² Engine coolant temperature sensor
    ² Crankshaft position sensor
    ² Intake manifold air temperature sensor
    ² Manifold absolute pressure (MAP) sensor
    ² Throttle position sensor (TPS)
    ² Camshaft position sensor signal
    ² Park/neutral switch (gear indicator signal—auto. trans. only)
    ² Oxygen (O2S) sensors
    Based on these inputs, the following occurs:
    ² Voltage is applied to the fuel injectors with the ASD relay via the PCM. The PCM will then adjust the injector pulse width by turning the ground circuit
    to each individual injector on and off.
    ² The PCM monitors the O2S sensor input and adjusts air-fuel ratio. It also adjusts engine idle speed through the idle air control (IAC) motor.
    ² The PCM adjusts ignition timing by turning the ground path to the coil on and off.
    ² The PCM operates the A/C compressor clutch through the clutch relay. This happens if A/C has been selected by the vehicle operator and requested
    by the A/C thermostat.

    ACCELERATION MODE
    This is an Open Loop mode. The PCM recognizes an abrupt increase in throttle position or MAP pressure as a demand for increased engine output and
    vehicle acceleration. The PCM increases injector pulse width in response to increased throttle opening.

    DECELERATION MODE
    When the engine is at operating temperature, this is an Open Loop mode. During hard deceleration, the PCM receives the following inputs.
    ² Air conditioning select signal (if equipped)
    ² Air conditioning request signal (if equipped)
    ² Battery voltage
    ² Engine coolant temperature sensor
    ² Crankshaft position sensor
    ² Intake manifold air temperature sensor
    ² Manifold absolute pressure (MAP) sensor
    ² Throttle position sensor (TPS)
    ² Camshaft position sensor signal
    ² Park/neutral switch (gear indicator signal—auto. trans. only)
    ² Vehicle speed
    If the vehicle is under hard deceleration with the proper rpm and closed throttle conditions, the PCM will ignore the oxygen sensor input signal. The PCM will enter a fuel cut-off strategy in which it will not supply a ground to the injectors. If a hard deceleration does not exist, the PCM will determine the
    proper injector pulse width and continue injection.
    Based on the above inputs, the PCM will adjust engine idle speed through the idle air control (IAC) motor.
    The PCM adjusts ignition timing by turning the ground path to the coil on and off.

    WIDE OPEN THROTTLE MODE
    This is an Open Loop mode. During wide open throttle operation, the PCM receives the following inputs.
    ² Battery voltage
    ² Crankshaft position sensor
    ² Engine coolant temperature sensor
    ² Intake manifold air temperature sensor
    ² Manifold absolute pressure (MAP) sensor
    ² Throttle position sensor (TPS)
    ² Camshaft position sensor signal
    During wide open throttle conditions, the following occurs:
    ² Voltage is applied to the fuel injectors with the ASD relay via the PCM. The PCM will then control the injection sequence and injector pulse width by
    turning the ground circuit to each individual injector on and off. The PCM ignores the oxygen sensor input signal and provides a predetermined amount of additional fuel. This is done by adjusting injector pulse width.
    ² The PCM adjusts ignition timing by turning the ground path to the coil on and off.

    IGNITION SWITCH OFF MODE
    When ignition switch is turned to OFF position, the PCM stops operating the injectors, ignition coil, ASD relay and fuel pump relay.
    DESCRIPTION - 5 VOLT SUPPLIES
    Two different Powertrain Control Module (PCM) five volt supply circuits are used; primary and secondary.
    DESCRIPTION - IGNITION CIRCUIT SENSE
    This circuit ties the ignition switch to the Powertrain
    DESCRIPTION - POWER GROUNDS
    The Powertrain Control Module (PCM) has 2 main grounds. Both of these grounds are referred to as power grounds. All of the high-current, noisy, electrical devices are connected to these grounds as well as all of the sensor returns. The sensor return comes into the sensor return circuit, passes through noise suppression, and is then connected to the power ground.
    The power ground is used to control ground circuits for the following PCM loads:
    ² Generator field winding
    ² Fuel injectors
    ² Ignition coil(s)
    ² Certain relays/solenoids
    ² Certain sensors
    DESCRIPTION - SENSOR RETURN
    The Sensor Return circuits are internal to the Powertrain Control Module (PCM).
    Sensor Return provides a low–noise ground reference for all engine control system sensors. Refer to Power Grounds for more information.
    OPERATION
    OPERATION - PCM
    (1) Also refer to Modes of Operation.
    The PCM operates the fuel system. The PCM is a pre-programmed, triple microprocessor digital computer. It regulates ignition timing, air-fuel ratio,
    emission control devices, charging system, certain transmission features, speed control, air conditioning compressor clutch engagement and idle speed. The PCM can adapt its programming to meet changing operating conditions.
    The PCM receives input signals from various switches and sensors. Based on these inputs, the PCM regulates various engine and vehicle operations
    through different system components. These components are referred to as Powertrain Control Module (PCM) Outputs. The sensors and switches that provide inputs to the PCM are considered Powertrain Control Module (PCM) Inputs.
    The PCM adjusts ignition timing based upon inputs it receives from sensors that react to: engine rpm, manifold absolute pressure, engine coolant temperature, throttle position, transmission gear selection (automatic transmission), vehicle speed and the brake switch.
    The PCM adjusts idle speed based on inputs it receives from sensors that react to: throttle position, vehicle speed, transmission gear selection, engine
    coolant temperature and from inputs it receives from the air conditioning clutch switch and brake switch.
    Based on inputs that it receives, the PCM adjusts ignition coil dwell. The PCM also adjusts the generator charge rate through control of the generator
    field and provides speed control operation.
    NOTE: PCM Inputs:
    ² A/C request
    ² Auto shutdown (ASD) sense
    ² Battery temperature
    ² Battery voltage
    ² Brake switch
    ² J1850 bus circuits
    ² Camshaft position sensor signal
    ² Crankshaft position sensor
    ² Data link connections for DRB scan tool
    ² Engine coolant temperature sensor
    ² Five volts (primary)
    ² Five volts (secondary)
    ² Fuel level
    ² Generator (battery voltage) output
    ² Ignition circuit sense (ignition switch in on/off/crank/run position)
    ² Intake manifold air temperature sensor
    ² Leak detection pump (switch) sense (if equipped)
    ² Manifold absolute pressure (MAP) sensor
    ² Oil pressure
    ² Overdrive/override switch
    ² Oxygen sensors
    ² Park/neutral switch (auto. trans. only)
    ² Power ground
    ² Sensor return
    ² Signal ground
    ² Speed control multiplexed single wire input
    ² Throttle position sensor
    ² Transmission governor pressure sensor
    ² Transmission temperature sensor
    ² Vehicle speed (from ABS module)
    NOTE: PCM Outputs:
    ² A/C clutch relay
    ² Auto shutdown (ASD) relay
    ² J1850 (+/-) circuits for: speedometer, voltmeter, fuel gauge, oil pressure gauge/lamp, engine temp. gauge and speed control warn. lamp
    ² Data link connection for DRBIIIt scan tool
    ² EGR valve control solenoid (if equipped)
    ² EVAP canister purge solenoid
    ² Fuel injectors
    ² Fuel pump relay
    ² Generator field driver (-)
    ² Generator field driver (+)
    ² Generator lamp (if equipped)
    ² Idle air control (IAC) motor
    ² Ignition coil
    ² Leak detection pump
    ² Malfunction indicator lamp (Check engine lamp). Driven through J1850 circuits.
    ² Overdrive indicator lamp (if equipped). Driven through J1850 circuits.
    ² Oxygen sensor heater relays (if equipped).
    ² Radiator cooling fan relay (pulse width modulated)
    ² Speed control source
    ² Speed control vacuum solenoid
    ² Speed control vent solenoid
    ² Tachometer (if equipped). Driven through J1850 circuits.
    ² Transmission convertor clutch circuit
    ² Transmission 3–4 shift solenoid
    ² Transmission relay
    ² Transmission temperature lamp (if equipped)
    ² Transmission variable force solenoid
    OPERATION - 5 VOLT SUPPLIES
    Primary 5–volt supply:
    ² supplies the required 5 volt power source to the Crankshaft Position (CKP) sensor.
    ² supplies the required 5 volt power source to the Camshaft Position (CMP) sensor.
    ² supplies a reference voltage for the Manifold Absolute Pressure (MAP) sensor.
    ² supplies a reference voltage for the Throttle Position Sensor (TPS) sensor.
    Secondary 5–volt supply:
    ² supplies the required 5 volt power source to the oil pressure sensor.
    ² supplies the required 5 volt power source for the Vehicle Speed Sensor (VSS) (if equipped).
    ² supplies the 5 volt power source to the transmission pressure sensor (if equipped with an RE automatic transmission).
    OPERATION - IGNITION CIRCUIT SENSE
    The ignition circuit sense input tells the PCM the ignition switch has energized the ignition circuit.
    Battery voltage is also supplied to the PCM through the ignition switch when the ignition is in the RUN or START position. This is referred to as the ignition sense circuit and is used to wake up the PCM.
    REMOVAL
    USE THE DRBIIIt SCAN TOOL TO REPROGRAM THE NEW POWERTRAIN CONTROL
    MODULE (PCM) WITH THE VEHICLES ORIGINAL IDENTIFICATION NUMBER (VIN) AND THE VEHICLES ORIGINAL MILEAGE. IF THIS STEP IS NOT DONE, A DIAGNOSTIC TROUBLE CODE (DTC) MAY BE SET.
    The PCM is located on the cowl panel in right/rear side of engine compartment

    To avoid possible voltage spike damage to PCM, ignition key must be off, and negative battery cable must be disconnected before unplugging PCM connectors.
    (1) Disconnect negative battery cable at battery.
    (2) If equipped, remove Transmission Control Module (TCM).
    (3) Remove coolant reserve/overflow tank.
    (4) Remove cover over electrical connectors. Cover snaps onto PCM.
    (5) Carefully unplug three 32–way connectors at PCM.
    (6) Remove three PCM bracket-to-body mounting nuts
    (7) Remove PCM/PCM bracket assembly from vehicle.
    (8) Remove 3 PCM-to-PCM bracket bolts (screws)
    INSTALLATION
    USE THE DRBIIIt SCAN TOOL TO REPROGRAM THE NEW POWERTRAIN CONTROL
    MODULE (PCM) WITH THE VEHICLES ORIGINAL IDENTIFICATION NUMBER (VIN) AND THE VEHICLES ORIGINAL MILEAGE. IF THIS STEP IS NOT DONE, A DIAGNOSTIC TROUBLE CODE (DTC) MAY BE SET.
    The PCM is located on the cowl panel in right/rear side of engine compartment
    (1) Check pins in three 32–way electrical connectors for damage. Repair as necessary.
    (2) Install PCM to its mounting bracket. Tighten three mounting bolts to 3 N·m (25 in. lbs.) torque.
    (3) Install PCM/PCM bracket to body. Install 3 nuts and tighten 9 N·m (80 in. lbs.) torque.
    (4) Install three 32–way connectors.
    (5) Install cover over electrical connectors. Cover snaps onto PCM.
    (6) Install coolant reserve/overflow tank.
    (7) If equipped, install Transmission Control Module (TCM).
    (8) Connect negative cable to battery.
    (9) Use the DRBIIIt scan tool to reprogram new PCM with vehicles original Identification Number (VIN) and original vehicle mileage.
    Hope this helps. Look at the part in RED

  3. #3
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    GEE WIZZ!!
    Got some reading to do, thanx
    V8 Suzuki SJ410, "Zukzilla"
    Jeep Cherokee HO 4.7 V8 Q Drive
    Tata Lexus V8 Conversion.
    Volvo S60, Cherry QQ
    Jaguar 500 4x4 quad

    Occupation: Brake & Clutch Specialist.

  4. #4
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    It is important to note that the default
    condition in the PCM is an invalid key; therefore, if
    no message is received from the SKIM by the PCM,
    the engine will be disabled and the vehicle immobilized
    after two seconds of running

    Sentry key immobiliser module. Hope this helps.8)

  5. #5
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    Default Nou is ek keelvol!

    Vat toe die Jeep na spesialis 1, hy vra my R500 vir diagnostic, hy se die Fuel injectors het nie pulse nie, sleep Jeep terug en soek die oorsaak, en kry niks!
    2de "spesialis" twee dae later doen ook diagnostic, hy se die cam sensor kry nie krag nie, spaneer weer twee dae om die fout te soek, maar kry niks.
    Ek wip toe my gat en laat die Jeep na stealers sleep.
    Die M/Benz garage se Vrydag vir my "die enjin het geen olie druk" ek vra toe vir kwotasie!
    Vandag bel hulle weer, die keer se hulle die Jeep het GEEN kompressie op die regter bank nie.
    Ek vra hulle toe of dit nou kompressie of olie druk is, hulle andwoord "ons moet die head afhaal om vas te stel wat die probleem is"
    En die kwotasie daarvoor? NET R6000 + vat!
    WTF?
    Net om te kyk R6500?
    Ek is nou raadop!
    Iemand help (asseblief), voor ek die Jeep brand steek!
    More begin ek by die begin, enjin kom uit, strip alles en begin van voor af!
    V8 Suzuki SJ410, "Zukzilla"
    Jeep Cherokee HO 4.7 V8 Q Drive
    Tata Lexus V8 Conversion.
    Volvo S60, Cherry QQ
    Jaguar 500 4x4 quad

    Occupation: Brake & Clutch Specialist.

  6. #6
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    Help
    V8 Suzuki SJ410, "Zukzilla"
    Jeep Cherokee HO 4.7 V8 Q Drive
    Tata Lexus V8 Conversion.
    Volvo S60, Cherry QQ
    Jaguar 500 4x4 quad

    Occupation: Brake & Clutch Specialist.

  7. #7
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    Doep, die feit dat hy wel gevat het, laat my glo dis elektronies. Het jy al die konneksies nagegaan ?

  8. #8
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    If you google that code there is many answers but this one has a diagram with. maybe you can make more sense of it.

    http://www.justanswer.com/jeep/1pz5n...wing-just.html

    http://forums.cnet.com/7723-7811_102-248386.html (maybe not related as such but interesting)

    and here is like a manual http://www.scribd.com/doc/20027803/J...nition-Control check page 15/16

    Riaan
    Last edited by relec; 2011/04/12 at 12:28 AM.
    Riaan
    Mahindra S10 DC Pikup
    GWM Steed DC 2.8 TCi - Dastek(Sold)

  9. #9
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    Thanx, it did help some, gave me more info on where to look.
    Kopseer die probleem!
    V8 Suzuki SJ410, "Zukzilla"
    Jeep Cherokee HO 4.7 V8 Q Drive
    Tata Lexus V8 Conversion.
    Volvo S60, Cherry QQ
    Jaguar 500 4x4 quad

    Occupation: Brake & Clutch Specialist.

  10. #10
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    Ek simpatiseer, soek ook alweer twee weke lank na 'n elektriese probleem! Moet se , ek leer baie v my voertuig, maar dis baie ongerieflik as mens hom nodig het.
    Sterkte!

  11. #11
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    Ja, dit is 'n pyn, veral as jy weet jy gaan die 22ste op verlof!
    Moet nou seker met Volvo ry, dus geen Trails vir my in Clarens!
    V8 Suzuki SJ410, "Zukzilla"
    Jeep Cherokee HO 4.7 V8 Q Drive
    Tata Lexus V8 Conversion.
    Volvo S60, Cherry QQ
    Jaguar 500 4x4 quad

    Occupation: Brake & Clutch Specialist.

  12. #12
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    I found my problem! When I opened the PCM today I found it fried on the inside, badly!
    Is there anybody with info as to where I can find a replacement PCM for a 2.7 CRD? The part number is : P56044 356AB.
    I am situated in Centurion, but anywhere in Gauteng will do.................
    Dealers quote; R25 000.

  13. #13
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    KobusM, if it's a Jeep, try www.americansuv.co.za
    SWAMBO
    2009 Suzuki Grand Vitara 3.2i V6 Auto
    Me
    2003 Ford Focus 2.0

    Eurard: For T=2; ½T=1 but, 1/2T=¼

  14. #14
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    Zuk

    I had a very similar problem with my ZJ some time ago, it started and run 100%
    One morning it just refused to start, checked everything and also got a weird fault code... think it was the same one, will get back to you.
    But after a lot of work I found there was no fuel pressure, so I traced the fuel pump relay... all was 100% but the fuel pump did not get power. I then supplied power directly to the fuel pump, first time the fuel pump just clicked... after a few tries it start working but had almost no power.
    I then found a cutt off relay of some sort. There was no earth on this relay, I`ve bridged the earth and got the system to work again.
    The fuel pump seized and caused this relay network to short somewhere... still dont know where, as I could not trace te earth wire of the cut off... relay. I`ve sold the car with the bridge earth wire... worked 100%
    So, maybe check the fuel pump if there is fuel pressure. Then check the fuel pump relay..
    By that time - I will get back to you on the other relay

    WWW.AMADAXTREME.CO.ZA
    203 Edison Crescent, Weca 4x4, Hennopspark, Centurion, GPS: 25°52’19.0”S 28°09’59.3”
    Cobus Böhmer CEL: 071 641 7947 Email: cobus@amadaxtreme.co.za

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    Zuk
    Its the Automatic Shut Down Relay(ASD)!
    Check fuel pump and wirinng around the fuel pump and ASD relay.

    WWW.AMADAXTREME.CO.ZA
    203 Edison Crescent, Weca 4x4, Hennopspark, Centurion, GPS: 25°52’19.0”S 28°09’59.3”
    Cobus Böhmer CEL: 071 641 7947 Email: cobus@amadaxtreme.co.za

  16. #16
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    Sorry duplicate post
    Last edited by Zuk Doep; 2011/04/13 at 04:08 PM.
    V8 Suzuki SJ410, "Zukzilla"
    Jeep Cherokee HO 4.7 V8 Q Drive
    Tata Lexus V8 Conversion.
    Volvo S60, Cherry QQ
    Jaguar 500 4x4 quad

    Occupation: Brake & Clutch Specialist.

  17. #17
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    Hou duim vas! Ek het enjin vandag weer oop gemaak, gevind die regter cam gear het los gekom (engineering manne) het keyway vervang en cam terug gesit. Sal later vandag start en kyk!
    Dink julle daar is 'n moontlikheid dat die valves kon buig, ag die enjin gedraai het met een cam wat stil gestaan het?
    Alhoewel cam sensor op linker cam is, kan dit nogsteeds die fault code gee??
    Navigator: prior to tracing the cam problem, i checked for fual pressure from pump, fuel rail on "check valve" had fuel pressure.
    Thanx!
    V8 Suzuki SJ410, "Zukzilla"
    Jeep Cherokee HO 4.7 V8 Q Drive
    Tata Lexus V8 Conversion.
    Volvo S60, Cherry QQ
    Jaguar 500 4x4 quad

    Occupation: Brake & Clutch Specialist.

  18. #18
    Join Date
    Nov 2010
    Location
    Capetown, Blouberstrand
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    Atlast!!!
    Recap:" engine gave me error code after major overhaul, and engine would not start.
    Cam sensor did not get pulse from cam, opened engine and find that cam gear came loose, so engine turned, but cam sttod still.
    This caused 3 and 5 exhaust valves damage.

    Replaced valves, repaired cam gear and put everything back together.........it started right up, nice oil pressure and everything looks fine.

    leaving for Clarens on Friday, hope everything is sorted.
    V8 Suzuki SJ410, "Zukzilla"
    Jeep Cherokee HO 4.7 V8 Q Drive
    Tata Lexus V8 Conversion.
    Volvo S60, Cherry QQ
    Jaguar 500 4x4 quad

    Occupation: Brake & Clutch Specialist.

  19. #19
    Join Date
    Apr 2009
    Location
    Bellville
    Age
    61
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    11,643
    Thanked: 727

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    Glad you got it sorted, Doep !

  20. #20
    Join Date
    Sep 2006
    Location
    Bergbron
    Age
    43
    Posts
    488
    Thanked: 16

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    Nice one Doep, Im glad to see youve come right espcially as it seemed to be hopeless at one stage.

    Lekka man !

    Enjoy Clarens.

    Cheers
    Chris

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