rough tickover tickover high?

[daddy5x]

gu evening all ive got a 2001 a4 tdi runs well but tickover is steady at around 950 rpm surely this isnt right ive had it on vagcom only faults were temp sensor and a hvac 1 any ideas fellas ? could this be a vac/air leak somewhere thanks in advance

[Crasher]

A faulty coolant temp sender will make the engine do all sorts of odd things so fit a new one and see how it goes. What is the HVAC code?

[daddy5x]

A faulty coolant temp sender will make the engine do all sorts of odd things so fit a new one and see how it goes. What is the HVAC code?

HVAC code is 00604 ct sensor code is 01039

[Crasher]

Yes, fit a new coolant temp sender.

The HVAC code is broken down into three versions

00604 Potentiometer G113 in the positioning motor V71 (for air-flow flap)

1) Short to earth/SP Open circuit/short to positive /SP
2) Adaption limit exceeded (This fault is only detected during basic setting)
3) Potentiometer G113 in V71 defective

[daddy5x]

tnanks getting temp sensor today what is the hvac for ?

[daddy5x]

tnanks getting temp sensor today what is the hvac for ?

ive fitted temp sensor on rear left of engine and alls the same staying at around 65/70 on gauge fan kicking in then and tickover is still perfectly still at 950 rpm ANY help or advice appreciated thanks

[Crasher]

what is the hvac for ?

Not with you?

So the temp gauge reads 75 and the electric cooling fan kicks in or the mechanical one? What is the cars engine code? Have you used VCDS to see what the Measuring Blocks reported temperature is?

[daddy5x]

Not with you?

So the temp gauge reads 75 and the electric cooling fan kicks in or the mechanical one? What is the cars engine code? Have you used VCDS to see what the Measuring Blocks reported temperature is?

engine code is awx i changed the temp sensor today for a green 1 the 1 that was in was black my temp goes up to between 50 and 70 ishno higher the big fan on front passenger side kicks in just over 70 temp also revs are always on 950 steady when its ticking over ?????? but pulls and drives perfect?

[daddy5x]

Nother thing ive found is vagcom doesnt find engine ???

[Crasher]

It may be that someone has altered the idle speed in VCDS but if you can't access the engine ECU you are stuffed!