1998 Porsche 911 996 Carrera 2 Acceleration dies off after 3 - 4000 rpm

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Gavin
Fixes: 80
Problem added: Oct 4, 2007 (12 years ago)
When accelerating hard the car seems to lose power after 4000 rpm and doesn't feel right. The engine feels a bit "shakey" and the car just doesn't pull properly.

Car details
Car: Porsche 911
Variant: 996 Carrera 2
Model Year: 1998

Recalls: Porsche 911 Recalls
More: Porsche 911 Problems
Parts mentioned in this problem
Replies and fixes
Avatar
Gavin
Fixes: 80
Oct 4, 2007 (12 years ago)
This is a classic case of the MAF sensor failing. A common issue on 996s.

MAF = Mass Air Flow sensor - in a nutshell it's a piece of wire that acts as a thermistor (the air flow is calculated by the amount of cooling).

These are pretty sensitive pieces of equipment and can get dirty or just fail. When this happens the car isn't getting the correct mix and you'll experience the above problems.

You can fix this yourself although if you're inexperienced it's worth getting it done by an official Porsche centre or independent specialist.

Costs:
Over £300 for a Porsche fix
Parts around £120
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