Stuttering on idle and under power

[s3_will]

Morning all,

Just had a terrible drive into work in my S3. The past couple of weeks the idle when cold has been very poor and I've had to apply a little throttle to keep it from cutting out. This morning the car started fine but under power it would stutter. I had a similar issue to this once before and it boiled down to the MAF.

Does anyone have any suggestions?

Thanks

Will

 

[Paradox1]

you will need to get it scanned really but I had the same with a maf. get it scanned first then you'll know which route to take :thumbsup:

 

[s3_will]

A friend has a reader so I'll plug that in and see what it brings up.

 

[16Klappe]

If it drives "ok" with light throttle I would suggest map sensor or more likely failing coil packs.

 

[s3_will]

There is still some stuttering when driving on a constant throttle. Is there a way to see if the coil packs are going or just a case of replacing them and hoping that sorts it?

 

[Paradox1]

pull the out one by one


also try disconnecting the maf

 

[s3_will]

I just about got home, the car went into limp home mode! Turned out coil 2 had failed. £20 later and I'm back up and running and back on full power.

Cheers for the help guys.

 

[Paradox1]

Good stuff