Merc A-class has no MAF





Results 1 to 10 of 10
  1. #1
    Join Date
    Nov 2009
    Location
    Johannesburg
    Age
    47
    Posts
    1,082
    Thanked: 0

    Default Merc A-class has no MAF

    Trying to troubleshoot a problem on SWAMBO's A170. Looks like the MAF is fauly but the car does not seem to have one.

    OBD2 scanner pics up fault:
    P0068-MANIFOLD PRESSURE/THROTTLE POSITION CORRELATION

    How can a car measure air volume if not by MAF?

    Any ideas where these parts are?

    This car is like no other I have ever seen took me 30 minuts to find the air filter
    Godzilla - 1997 Range Rover 4.6 HSE
    Monty - 1972 Series 3 LWB (moved on)

    "Life's tough. It's even tougher if you're stupid."
    -John Wayne

  2. #2
    Join Date
    Jan 2008
    Location
    Modderfontein, naby Rysmierbult
    Age
    75
    Posts
    4,674
    Thanked: 562

    Default

    My Colt hasn't got a MAF either, but it has been doing just fine without one.

    Seriously, what is a MAF ?
    Johan Mitchell, .... r.i.v. Swambo Marthie

    My beste kennis is diť oor my eie onkunde

    '96 Colt DC V8 ... Safari Camper ... '88 Fleetline L
    '88 Ballade 150 ... sold
    "The rule here is that there is no rule" .. MikeAG

  3. #3
    Join Date
    Sep 2006
    Location
    Gaborone, Botswana
    Age
    56
    Posts
    4,793
    Thanked: 901

    Default

    MAF = Mass Air Flow (sensor).

    Some vehicles use MAP - Manifold Absolute Pressure.
    Kobus

    HDJ81 VX

  4. #4
    Join Date
    Nov 2009
    Location
    Johannesburg
    Age
    47
    Posts
    1,082
    Thanked: 0

    Default

    Ah, so where the hell is the MAP sensor?

    In fact where is the manifold on this funny car?
    Godzilla - 1997 Range Rover 4.6 HSE
    Monty - 1972 Series 3 LWB (moved on)

    "Life's tough. It's even tougher if you're stupid."
    -John Wayne

  5. #5
    Join Date
    Aug 2008
    Location
    Rangeview Krugersdorp
    Age
    69
    Posts
    6,069
    Thanked: 941

    Default

    The do have MAF sensors according to Mr Google ? Pics and prices too @ 85 pounds, sounds about right.
    There is no task too simple for some people to complicate !



    Chev Aveo and Atos and Polo.

  6. #6
    Join Date
    Jan 2008
    Location
    Modderfontein, naby Rysmierbult
    Age
    75
    Posts
    4,674
    Thanked: 562

    Default

    Quote Originally Posted by KobusDJ View Post
    MAF = Mass Air Flow (sensor).
    Some vehicles use MAP - Manifold Absolute Pressure.
    Thanks Kobus, and I see the 1UZ-FE actually has a MAF
    Johan Mitchell, .... r.i.v. Swambo Marthie

    My beste kennis is diť oor my eie onkunde

    '96 Colt DC V8 ... Safari Camper ... '88 Fleetline L
    '88 Ballade 150 ... sold
    "The rule here is that there is no rule" .. MikeAG

  7. #7
    Join Date
    Sep 2006
    Location
    Gaborone, Botswana
    Age
    56
    Posts
    4,793
    Thanked: 901

    Default

    Quote Originally Posted by Gaitshi Gubib View Post
    .... the 1UZ-FE actually has a MAF
    My VG30 used to have a MAF sensor, until I installed the Dicktator ECU, now it uses MAP
    Kobus

    HDJ81 VX

  8. #8
    Join Date
    Nov 2009
    Location
    Johannesburg
    Age
    47
    Posts
    1,082
    Thanked: 0

    Default

    It looks like the early A-class had a MAF integrated with the ECU. If one packed up you had to buy both and it still had to be coded to your car.

    Later model 2005 onwards seems to be different Merc parts guy could not find a MAF for the vehicle but then he couldn't find the MAP either.
    Godzilla - 1997 Range Rover 4.6 HSE
    Monty - 1972 Series 3 LWB (moved on)

    "Life's tough. It's even tougher if you're stupid."
    -John Wayne

  9. #9
    Join Date
    Nov 2009
    Location
    Johannesburg
    Age
    47
    Posts
    1,082
    Thanked: 0

    Default

    OK, after downloading a really big workshop manual on the A-Class I found the engine sitting under the floor. I also found the MAP sensor which I think is suspect, will get a price in the morning.

    How can you test a MAP sensor?
    Godzilla - 1997 Range Rover 4.6 HSE
    Monty - 1972 Series 3 LWB (moved on)

    "Life's tough. It's even tougher if you're stupid."
    -John Wayne

  10. #10
    Join Date
    Oct 2011
    Location
    Centurion
    Age
    40
    Posts
    2,880
    Thanked: 250

    Default

    Did you ever find the problem?
    2013 Tata Xenon 3.0 Dicor D/C
    2006 Honda Civic EXi FN2

Similar Threads

  1. Discovery 2: MAF cleaning instructions
    By Rain Hard in forum Land Rover
    Replies: 26
    Last Post: 2012/08/29, 09:21 PM
  2. Defender Defender TD5. MAF removal and funny injector sounds
    By constantlm in forum Land Rover
    Replies: 2
    Last Post: 2011/06/29, 08:19 AM
  3. Merc part prices
    By Ne3M in forum Mercedes
    Replies: 6
    Last Post: 2011/06/21, 06:51 AM
  4. Where to buy a Merc A Class Engine
    By IanG in forum Vehicle & Technical Chat - General
    Replies: 0
    Last Post: 2011/06/08, 01:01 PM
  5. How likely is your vehicle to be stolen?
    By mvcoller in forum The 4x4 Pub
    Replies: 31
    Last Post: 2010/12/18, 03:10 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •