I replaced the gaskets on the air intake plenum, replaced the pcv valve and hose, checked and replaced whatever cracked or old vacuum lines I could find, and the vacuum level has improved somewhat, but the car still tries to idle fast (1200 up to 2000 rpm). If it tries to reach a lower idle, it usually dies. Rechecked trouble codes and am still getting the 22 sometimes with the 53, sometimes without. Further investigation into the 22 code and the TPS itself shows that on the three wires leading to the TPS connector, I get the 5v reference voltage on one wire, one appears to be a good ground, but the third wire that the TPS signal travels on appears to be dead. I got no response on the multimeter when opening or closing the throttle. I even reinstalled my old tps and redid the test, but got the same result. I'm starting to wonder about my ECM. What do you think?
I have tried to look for vacuum leaks by listening for one. Don't hear any plus tried spraying carb cleaner along where vacuum connections are to see engine speed changed. Would I do the same for intake leaks or is there a better way?[/Quote:4a36b2f356]
Friday, July 31st, 2009 AT 10:30 PM