my wife's 2002 sunfire 2.2 (not eco-tech) won't start unless you push down the accelerator. It will stall at stop likes etc. I replaced the fuel filter and the fuel pump is definitely pumping fuel. It doesn't take much pedal to get it to start. I had her start it with the intake off so I could see where the butterfly valve had to be for it to start and it barely needs to be cracked open. I also recently replaced the IAC because it was throwing that code over the odb2. No codes are being thrown this time.
HELP!
OK, it's got fuel and spark.
I pulled the new iac off and it starts. it doesn't run well, but it starts. Could it be the iac?