my 2004 toyota corolla will start but wont stay on unless i give it gas and get it running...after driving it for a few mins its fine....check engine light came on after a day of this happening...I replaced the spark plugs and the coils looked fine...what could the problem be?
Asked by coolethan Jan 30, 2015 at 05:42 PM about the 2004 Toyota Corolla LE
Question type: Maintenance & Repair
my 2004 toyota corolla will start but wont stay on unless i give it gas and get it running...after driving it for a few mins its fine....check engine light came on after a day of this happening...I replaced the spark plugs and the coils looked fine...what could the problem be?
5 Answers
FordNut answered 2 years ago
There are so many things, I recommend an OBDII scan That will eliminate a lot of guesswork and buying parts you don't need. Many parts houses will scan it free. Don't buy anything ..yet. Electrical parts can't be returned. Get the code(s) and bring them back here....one of us will be happy to help. Or drop me a PM.
FordNut answered 2 years ago
One of the sensors is probably not sending the right signal to the ECU and when cold it's running lean, it needs a bit more fuel in the mix cold and when warm it's running with the right mix of 14.7:1. Problem is which one..MAF, MAP. o2..and more. That's what the scan will tell.
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