Porsche 911 acceleration dies off after 3 - 4000 rpm
Variant: 996 Carrera 2
Model Year: 1998
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.
Posted: Oct 4, 2007 (17 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
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
Posted Oct 4, 2007 (17 years ago)
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