I have not checked fuel pressure; however, no check engine light has come on. Lately, the idle on either cold or warm start (seems to be 50/50) will not come to idle properly. It will walk back and forth in between 500 and 1000 RPMS, then after a minute or two come to proper idle. The throttle positioning sensor checks out okay as well as the coolant sensor. There are no vacuum hose leaks that I or anyone else has been able to find, and as far as I can tell, the fuel pump is either going to work or not at all. Start-ups on the car are consistent. I have never had an instance of the car giving me a hard start yet.
Thursday, August 26th, 2010 AT 7:42 AM