Good morning all,

I have just bought this 2000 Cavalier with a 2.2l engine for my son. I bought it with a blown head gasket, I have replaced head and head gasket and on initial start it ran great. I ran it for 30 mins took for a test drive and it ran fine. I went to start a couple days later and she would not stay running, she would run for a couple of seconds and die as if she was lean or running out of fuel. This process would happen another 4-5 times and then idle, if you try to accelerate she will will sputter as if she is running out of fuel. If you let her run for 3-5 mins she runs great until she gets cold again and the process begins again. I have checked the TPS, IAC and the MAP sensor and everthing appears to be working, I am using a Haynes manual and there are no specs for any of these sensors. If anyone could give me any advice it would be very much appreciated.

 

whats the fuel pressure,check the resistance of the coolant temp sensor cold and hot you should be able to google it and get the resistance to temp charts