VR6 sputters when cold...

[Sypher50 0]

Hi, when i start up my C in the morning whens its cold it sputters extremely when i accelerate...when its idling its perfectly fine and doesnt sound like anything is wrong...only when i step on the gas....then after warms up it only hesitates once in a while with a load. If you could help me. Thanks

[PhatVR6 0]

could be the MAF, coil pack or the blue temperature sender.

 

hard to tell without seeing the car and getting in on a diagnostics machine/1552/ fault code reader.

[Henny 0]

Welcome to the forum... 8)

 

Which engine has your C got in it? Helps with finding problems if we know which it is! ;)

 

*edited due to stupidity... * :oops:

[Andi 2,147,483,647]

The subject of the thread might give that away, m8...... ;)

[Henny 0]

:oops: OK, I've had a busy morning and a nasty trip to work 'cos of the snow... :roll:

 

Sorry Sypher50, my mistake... 8)

[gareth naffine 0]

my vr6 is exactly the same really bad in first mainly and it kangaroos up the road if you find the answer please tell me how to sort it !

Thanks :?

[dr_mat 0]

There's no single answer to these kind of problems. Let's face it, "bad running" is a single symptom that can be caused by pretty much *any* engine fault.. The most common causes of bad running when cold, however, are probably:

 

idle stabilisation valve probs

engine temp sensor probs (this would show up on VAG-COM)

HT lead problems / coil pack / spark plugs

fuel delivery - injectors, fuel pump etc.

 

..but you could also benefit from a ECU reset, so it re-adapts to your engine's config.

 

First things first, if you don't wanna just replace things, get it on VAG-COM (or equivalent) - any engine fault codes can cause all kinds of inconsistent running.