1988 928 starts and runs goodfor 20 seconds then lose cylinders on both banks comp. good shut off and restart does same thing

Asked by PeterK123 Feb 06, 2013 at 08:15 AM about the 1988 Porsche 928

Question type: Maintenance & Repair

4 Answers

migration_judge_roy answered 11 years ago

Sounds fuel related. We could start by making sure the fuel is present and the (is it twin carb or fuel injected) is behaving itself. I assume this happens when the car is cold?...and can point to a choke or heat-riser issue- twenty seconds..eh? Does it seem starved of fuel, or choked off with too much fuel? a sniff of the exhaust when this happens would let us know. 1988 still has twin carbs??

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