Defender 110 CSW TD5 failed sniff test

versteckt said:

@Polski Boschski - can you please explain why you'd change the ECU and fuel pressure regulator? I'm new to all of this and I'd just be throwing stuff on without knowing why.

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Polski Boschski said:

Early td5 engines did get updated a bit.
Head was changed and ECU was also changed.
Fuel pressure regulator is a consumable part at the back of the engine and easy to get at with the head off. It's a must do. Not expensive and easy.
ECU change will give you better fuel economy and other options for programming against the early ones which were set in their ways.


...AND while you are in there replace the injector wire loom. Again easy and cheap.
It gets wet with oil and doesn't last very long .
May as well change it for the sake of £40

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