issues

[ash1.8T]

Hi guys

I'm trying to sort out a starting issue with my car where it doesn't start 1st time I've changed the camshaft position sensor and there has been no change apart from the revs going up and down on idle

I'm starting to think that the starting issue is down to the immobiliser is it expensive and hard to replace?
Cheers ash

[cullygti]

revs goin up and down could be that your throttle body needs a clean or your temp sensor or thermostat needs changing 

[ash1.8T]

Thanks cullygti
I'll look into that. The revs on idle has only jus started wouldn't the throttle body, temp sender and thermo go wrong progressively?

[cullygti]

well im not sure mate but wont hurt to clean tb and mine was doing the same and a good chap off here put vag com on for me and it was my temp sensor that was at fault and now iv changed that and its still the same so after changin temp sensor if problem is still the same  i do beleive it is now my thermostat if that helps you mate 

[Wayne]

Have you had it scanned for faults.

[ash1.8T]

Tbh I haven't scanned it I need to get one of those code readers me thinks

[daz veedub]

 ive changed both and still sits lower than 90, replaced waterpump and cambelt couple weeks back so cant be pump...........which leaves the wires ontop of temp sensor could be dodgy