996 MAF
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Discussion

TROOPER88

Original Poster:

1,788 posts

210 months

Thursday 8th December 2011
quotequote all
Hi
My 1999 996 C4 has developed a slight fault.
It first appeared a couple of weeks ago in slow moving traffic. I went to pull forward and I stalled. On a few occasions after this as I have pulled off the car has stuttered.
I find myself having to give the car more throttle as I pull away.

My fuel consumption also appears to be slightly worse.

This makes me think the MAF is at fault.

Can they be repaired/cleaned or is it best to change for new?

Many thanks

Sunnysidebb

1,385 posts

198 months

Thursday 8th December 2011
quotequote all
TROOPER88 said:
Hi
My 1999 996 C4 has developed a slight fault.
It first appeared a couple of weeks ago in slow moving traffic. I went to pull forward and I stalled. On a few occasions after this as I have pulled off the car has stuttered.
I find myself having to give the car more throttle as I pull away.

My fuel consumption also appears to be slightly worse.

This makes me think the MAF is at fault.

Can they be repaired/cleaned or is it best to change for new?

Many thanks
Yes they can be cleaned with a good carb cleaner. Sometimes it can make a world of a difference, but sometimes the MAF is too far gone and cleaning does nothing. Its worth a go and is the cheapest option.
If the problem gets worse you can disconnect the MAF and run the car, if it runs better without the MAF than with then its defective.
Hope that help a little, can you get the car hooked up to a Durametric??

TROOPER88

Original Poster:

1,788 posts

210 months

Thursday 8th December 2011
quotequote all
Sunnysidebb said:
Yes they can be cleaned with a good carb cleaner. Sometimes it can make a world of a difference, but sometimes the MAF is too far gone and cleaning does nothing. Its worth a go and is the cheapest option.
If the problem gets worse you can disconnect the MAF and run the car, if it runs better without the MAF than with then its defective.
Hope that help a little, can you get the car hooked up to a Durametric??
Hi
Thank you very much for taking the time to reply.

I will do as you recommend and try some carb cleaner and see how it goes.
I need to find a good indy in my area (Walton on thames) if anyone knows one? So if the prob persists will get a diagnostics check done.

Cheers

Chris Stott

19,849 posts

228 months

Thursday 8th December 2011
quotequote all
TROOPER88 said:
I need to find a good indy in my area (Walton on thames) if anyone knows one? So if the prob persists will get a diagnostics check done.

Try GTOne in Chertsey.

TROOPER88

Original Poster:

1,788 posts

210 months

Thursday 8th December 2011
quotequote all
Chris Stott said:
Try GTOne in Chertsey.
Will do, cheers!

sundayjumper

531 posts

313 months

Friday 9th December 2011
quotequote all
TROOPER88 said:
I went to pull forward and I stalled. On a few occasions after this as I have pulled off the car has stuttered.
I've only had my car (1999 996 C2) just over a month but it had always felt a little bit tricky to pull away, seeming to bog down easily.

Last weekend I cleaned out the throttle body and gave the MAF a good soaking in carb cleaner. I took both of them right off the car so that I could do it properly. I don't think you could really do it in-situ.

Drove it again today and I *think* it's a bit smoother. Definitely worth you giving it a try as it's basically free (apart from buying some carb cleaner if you don't already have a can).