406 hdi 110 engine speed fault code

[patrickgledhill]

Hi guys,

I've got the 406 hdi 110 as a few of you may know. Recently the car has been doing this strange this where it seems the car cuts out for a split second and then its fine again, while driving you can feel a real jerk when this happens.
also yesterday the engine just stopped when i went to change from 1st to reverse, i still had the clutch down so I'm sure I didn't stall it!

This morning I put PP2000 onto the car and im getting a engine ecu fault code "intermittent fault. engine speed. coherence"

I'm not sure what this means but I'm thinking maybe a crank shaft sensor? or cam shaft sensor?

Cheers for any help

Patrick

[RichardW]

Crank sensor I expect - I think the cam sensor is only used at start up to confirm that cam is rotating and in synch with crank.

[patrickgledhill]

Cheers Richard, I think i might have a go at changing that out. Do they get dirty?

I'm assuming the the sensor is located down buy the crankshaft pulley?

Cheers

[RichardW]

They're not really known for giving trouble - it's on top of the gearbox, bit difficult to access AFAIK as it's buried under a load of wiring.