I need help here. The problem has expanded. No problem starting the car cold running 20 minutes and restarting within 2 minutes of turning the car off. If however I let the car sit about 15 minutes it will start and run rough and I need to "feather" the pedal to keep it running. RPMs jump up and then settle back to about 600. This will set a 0171 and 0303 could typically. If I run it for 20 minutes and then let it sit 30-45 minutes it will try to start and run rough and no amount of feathering of the pedal will keep it running. I have to let it sit about another 10 minutes and then it starts and runs fine.
I an totally confused. I have swapped wires, checked modules, checked vacuum lines, cleaned TPS, replaced MAF, replace 02 sensor.
At a loss. Any suggestions on what to try next?
Thanks for the help,