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  #1  
Old 20-01-12, 10:40 AM
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WynandV WynandV is offline
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Default Defender ECU Problems - Mysterious circumstances

About two weeks ago I took my Defender 90 TD5 to a reputable (apparently) independent workshop in the north of Pretoria for a major service. Yesterday morning when I got into the car to drive to work I noticed that the glow plug lights didn’t come on when I turned the key, the engine turned but there was no ignition. I didn’t find it strange at the time because it happens from time to time due to oil in the wiring loom. Normally I would jump out, open the ECU compartment, remove the red plug, clean out the excess oil with a tissue and spray a little electro clean that I carry around in the car with me, plug it in and off I go.

This time when I opened the ECU compartment I was horrified at what I saw…………… When I removed the red plug I immediately noticed that it looked different than when I last saw it, the white cover covering the holes was gone exposing the brass connections, I also noticed the orange plug seal lying on the bottom of the compartment. What also alarmed me is the fact that one of the four bolts anchoring the ECU to the body was missing. After cleaning out the plug and spraying a little electro clean I plugged it in and turned the ignition, but alas, no action!!!

I was really shocked at what I saw, because I know for a fact that this was not how everything was when I left my vehicle there for the service. The ECU was properly fastened to the body with four bolts and the red plug had a plate covering the brass connections, the same as the black plug. I was there this morning to confront them with this but obviously they denied everything and I have no proof that they tampered with the ECU. Maybe I was naďve in thinking that they would’ve confessed and at least tried to see if they can help me……………… Without wanting to throw anymore mud I left realising that I’m not going to win any battles there and I have to resolve this on my own. Obviously I cannot blame the fact that my vehicle is not running at the moment entirely on them because the thing ran properly for two weeks since my service, but in the same breath there is physical proof that there was tampering and what is to say the fact that my vehicle is standing is not as a result of that?

The bottom line to me is this: There is oil in the harness, I know that, it might be the cause of the oil, it might not. What is absolutely certain, without any doubt, is that there was definitely tempered with my ECU. When I last cleaned the ECU plug was at the beginning of January and everything was in order and intact. Now all of a sudden for some unexplained reason there are two parts missing, a bolt and a plug cover plate……………………

The reason for my post is not only to rant out my frustration but also to ask advice. What can I do to get my vehicle running again? How would I find out if it is the ECU causing the trouble or the plug or the wiring? If the ECU is fine, do I have to replace the plug? Do I have to replace the whole wiring loom? I would greatly appreciate it if anybody can assist.

Thanks
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  #2  
Old 20-01-12, 10:54 AM
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So jy kan tans glad nie die kar start nie?
As jy kan - neem hom dalk British toe laat hulle kyk?
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  #3  
Old 20-01-12, 11:01 AM
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My suspicion is that they swopped your ECU with a suspect one from another client, and they charged the other client for that... now they wait to make money out of you sitting with a suspect ECU
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Old 20-01-12, 11:01 AM
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Waar in Pta is jy WhyNot?
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Old 20-01-12, 11:03 AM
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reputable you say?

maybe also check your fuses and glow plug relay
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  #6  
Old 20-01-12, 11:04 AM
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What is the ECU number/code? The earlier ECU's were not programmable, and the later ones were programmable. More demand for the later programmablle ones.
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  #7  
Old 20-01-12, 11:06 AM
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Quote:
Originally Posted by TwinDisco View Post
What is the ECU number/code? The earlier ECU's were not programmable, and the later ones were programmable. More demand for the later programmablle ones.
It's a 2004 model TD5 so most probably one of the later ECU's
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  #8  
Old 20-01-12, 11:09 AM
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I don't know about the Defender, but even my 2000 RROver has the VIN number encoded in the ECU.

Maybe somebody with a diagnostic can have a look for you.
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Old 20-01-12, 11:13 AM
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Apparantly from 2003 the TD5 was fitted with the programmable ECU, NNN 120 for manual, and NNN 130 for auto.

I donk know if Land Rover has a record of the ECU serial number that was factory fitted to your Landy..
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  #10  
Old 20-01-12, 11:14 AM
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Quote:
Originally Posted by TwinDisco View Post
My suspicion is that they swopped your ECU with a suspect one from another client, and they charged the other client for that... now they wait to make money out of you sitting with a suspect ECU

+ 1......I know "WhyNot" personally and he is quite particular when it comes to his D90 aka banana-van . He knows about every
scratch, stain, oil-leak, bump and all other issues of by hart and all have their story. He knows what is going on under that drivers seat and in what state he left it.....I can personally vouch for that!!!


Die goed maak my net moerig..
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  #11  
Old 20-01-12, 12:16 PM
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I would like to know to which indy you took your defender too, even if you just pm me?
They will not ever see my defender...
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  #12  
Old 20-01-12, 12:39 PM
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If it's the case, this is the second story I have heard of in the last few months of independant LR workshops doing part swopping...
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  #13  
Old 20-01-12, 12:46 PM
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I've been having similar issues lately with my Disco TD5- it intermittently won't start.

First time- no glowplug light, engine cranked but no fire, problem went away on its own after 30 seconds.

Second time- no glowplug light, no cranking. It's not my starter as I sorted that out 6 months ago. problem persisted until I took key out, locked car and unlocked again using remote on key, then it was fine.

First issue was a month ago, second one last week. Too early to diagnose plus I've just been too busy to scratch around, but maybe bad alarm/immob unit??
My ECU plugs are clean.
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Old 20-01-12, 12:49 PM
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The ignition relay, yellow relay sometimes makes poor contact. It is the 2nd one from the back. Remove it and swop it with the 3rd one from the back which is the AC relay. I did that in December after having a similar problem. It still runs fine.

A new relay from Ford will cost R75.

The orange seal sometimes pops out when the plug is cleaned and there is still some solvent in the plug. The white contact "separater" should still be there. Maybe they cleaned the plug and the ECU during the service and did not replace it all properly.

OK I see your relays are not all yellow. They are all the same in any event. Just swop the 2nd and 3rd one to check anyway.
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Last edited by Dawid; 20-01-12 at 12:55 PM.
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  #15  
Old 20-01-12, 12:57 PM
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Whats the chances of the screw being missing since you've had the landy?
And only seeing it now.

As said above, maybe they cleaned the plug as part of the service.
Phone them and pretend to be a new client and ask them if cleaning this plug is part of the service.
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  #16  
Old 20-01-12, 04:32 PM
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Quote:
Originally Posted by bvandyk View Post
Whats the chances of the screw being missing since you've had the landy?
And only seeing it now.

As said above, maybe they cleaned the plug as part of the service.
Phone them and pretend to be a new client and ask them if cleaning this plug is part of the service.
Hi Ben,

I know that bolt was there because I've seen it many times before. When I was there this morning they clearly said that they never touched my ECU, he would only touch my ECU if there was an instruction on the job card and there was not.
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Old 20-01-12, 04:36 PM
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Quote:
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So jy kan tans glad nie die kar start nie?
As jy kan - neem hom dalk British toe laat hulle kyk?
Hi D,

Ja die kar staan by die huis en kan glad nie start nie.
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Old 20-01-12, 08:06 PM
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Hi Whynot,

Bel my in die oggend , wil net n paar goed by jou uitvind, kan jou dalk in die regte rigting stuur.

Groete

Pierre

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  #19  
Old 21-01-12, 02:54 PM
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I've fiddled with the relays today and it seems as if it has done the trick........ My landy is running again, yeah!!!!!!!

I still don't know what the cause of the problem is, I'm just glad that the ecu is still working. I've made an appointment with a Land Rover mechanic that I got in touch with through a work colleage. He said he will be able to sort me out, so hopefully after that I will know what EXACTLY causes this fault.

Sent from my BlackBerry 9900 using Tapatalk
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