Defender 90 TD5 help please.

[BLUEROLL]

I have an ongoing issue with my Defender 90 TD5 engine that two Landrover specialists have not been able to diagnose/fix so hoping that someone else has had the same issue and can help pinpoint. It is intermittent and sods law won`t manifest itself when at the garages, but when I accelerate hard and after a few more miles with normal driving it falters badly and the engine warning light and glow plug light illuminate. After pulling over this normally results in the engine revving itself and exhausting lots of fumes, it then settles down, warning lights go off and it drives normally again. Today though the engine stopped and would not start again for a while, then drove okay.
Help please ?

 

[snake_2586]

My guess is if you unplug the harness from the ecu under the drivers seat if will be full of oil, where it has migrated along the harness from the engine and started shorting pins out.

 

[Donkey Basher]

Get yourself onto this forum - if they don’t know the answer then it never existed in the first place!!

DEFENDER2.NET - Index

www.defender2.net

 

[ruger77]

ECU plug contaminated with oil or injector seals

 

[spanj]

ECU plug contaminated with oil or injector seals

Both and probably a knackered maf sensor too

 

[Blackwood Outdoors]

Relay or connections, under driver seat... swap relays and make sure the connections are not corroded and tight.,.Mine was stalling randomly about 5 year ago and would not start, it would just cut out intermittently...

 

[Utectok]

As above damp or oil also get a 300tdi lol

 

[Klenchblaize]

My guess is if you unplug the harness from the ecu under the drivers seat if will be full of oil, where it has migrated along the (injector) harness from the engine and started shorting pins out.

This ^ is certainly not something to rule out. I recently had mine changed before it got to the ECU:

K

 

[BLUEROLL]

Thanks all for the advice.

 

[BLUEROLL]

I have an ongoing issue with my Defender 90 TD5 engine that two Landrover specialists have not been able to diagnose/fix so hoping that someone else has had the same issue and can help pinpoint. It is intermittent and sods law won`t manifest itself when at the garages, but when I accelerate hard and after a few more miles with normal driving it falters badly and the engine warning light and glow plug light illuminate. After pulling over this normally results in the engine revving itself and exhausting lots of fumes, it then settles down, warning lights go off and it drives normally again. Today though the engine stopped and would not start again for a while, then drove okay.
Help please ?

An update for anyone interested and may suffer the same intermittent problem with their Defender TD5.
It turns out the problem was poor earth on ECU, caused by corrosion. It was discovered when the engine would not start after the handbrake cable snapped.
Fixed with a direct earth from the batt to the ECU.