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PorscheDoc
PorscheDoc, Porsche Mechanic
Category: Porsche
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Experience:  Porsche shop owner
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I have an intermittent misfire on my 3.2 Cayenne engine. I

Customer Question

I have an intermittent misfire on my 3.2 Cayenne engine. I have replaced the coil packs but no difference. Can you help?
Submitted: 3 years ago.
Category: Porsche
Expert:  Greg replied 3 years ago.
Hi .

Is the check engine light ON when the engine is running .

Did you check for malfunction codes .

Rgds Greg
Customer: replied 3 years ago.

The engine check light does not come on and the malfunction code shows injector circuit fault. I have no tools to be able to check the injectors.

Expert:  Greg replied 3 years ago.
Hi Robin .

you said coil pack ,? What year is this car as you have coils on each spark plug
Did you replace all 6 COP .

Greg
Customer: replied 3 years ago.


model year is 2004 and yes I have replaced all 6 CP,s

Expert:  Greg replied 3 years ago.
Hi Robin .

What where your malfunction codes .

What made you replace all the COP's

Was the boots of the COP's wet .

Greg
Customer: replied 3 years ago.


Hi Greg, since last communication the engine has been running perfectly with no hint of misfire. I have driven about 400 miles including towing my caravan for a weeks holiday. I am just waiting mow to see what happens. Thanks foryour help anyway.


Best regards


Robin

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