I have a 1984 porche 944. It has worked like a charm for the past 5 years but last week things turned for the worst. It just got really cold here in utah and my car is now struggling to get running. More specifically, the car turns over and starts just fine but dies immediately after starting. If I keep cranking the engine over and keep trying to start it eventually it does start and run just fine. Also, when it has finally succesfully started without stalling, I have to let it sit and idle for about 10 minutes before doing any actual driving. If I try to give it any sort of throttle during that initial idling period it just kills the engine. But like I mentioned earlier, if I do let it idle and warm up, eventually I can drive it like normal without any problems. If the engine is warmed up and I turn it off, it can sit for several minute
I am fairly knowledgeable in the field of automotive but am no mechanic nor an expert. I would appreciate some professional advice.
My car has 200000 miles.
My car has a manual transmission.
With a car that old, checking the fuel pressure is a good first step. If the pressure is low, The fuel enrichment will not work. If the pressure is good, I’m betting on a coolant temp sensor. You’re getting a shot of gas from the cold start valve and burning that when you first crank it, but the mixture is not rich enough to keep the car running until it warms up. The sensor should measure high resistance - about 2000 ohms, when the temp is at about freezing. If you need more help with this, contact Your Mechanic, they can send a technician to your home or office to check out your cold starting problem and advise you on what to do.
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