Vehicle & Technical > Defender

Td5 Misfire

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Porny:

--- Quote from: "suds" ---Ian
What difference would you notice on disconnection of Air Flow meter if working and if not working? I have a similar concern on my td5
thanks
Suds
--- End quote ---


If you disconnect a dodgy/faulty MAF sensor you should notice an improvement in low speed pick up, less hesitation when pulling away, and no low speed misfire.  You may also find that the engine performance is restricted at higher RPM's.

There are other things that can cause misfires on TD5's:

If the Crankshaft Position Sensor is too close to the flywheel (esp. if misfire occurs when the engine is hot) - you could do with reading fault codes off the ECU

Fuel Injector Faults (need diagnostic equipment really)

Fuel Injector Harness Faults (not just oil in the loom) - there was a problem with the harness not being plugged in correctly (faulty plugs)

Loose power feed into the underseat fuse box (though you usually have other electrical problems)



Ian

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