Skip the auto shop - Our mechanics make house calls

Q: Q: Car starts but dies a few seconds later. If I give it any amount of throttle (once it has started) it kills the engine

asked by on

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.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Q: Car starts but dies a few seconds later. If I give it any amount of throttle (once it has started) it kills the engine

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Trouble shifting into first gear

Hello. It is not normal for your clutch to have problems after being replaced a year ago. The cause of this is most likely due to a failure of the slave cylinder. There are other less common causes for the...

Q: I need a thermostat replacement, will they automatically do the coolant flush?

The cooling system is recommended to be flushed out anytime the thermostat is replaced if the coolant has not been changed or flushed recently. A thermostat does not always require the coolant to be flushed out and would be an...

Q: turned it off was running hot went to start turns over but wont start

Without knowing the exact model and engine you have, it's hard to give any guidance on a diagnosis. However it does sound like you may have overheated the engine to the point you warped the cylinder heads or blew the...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...