Engine Performance problem
2000 Saturn SC1 4 cyl Front Wheel Drive Manual 125005 miles
when the car is stationary with no road movement the car idles at arround 15 - 1800 rpms. When road movement is presant and the clutch is depressed the rpms will jump to 25 - 3500 rpms and will not return to the fast abnormal idle until the car comes to a complete stop. I have checked the operation of the butterfly in the throttle body and its movement appears correct. I have also checked for vacum leaks maybe the pcv valve has a leak but not the valve the boot that is seated on the valve cover but when I cover with my hand the idle stay the same (no change). About 3 - 4 weeks after problem started sercive engine soon light has come on. Autozone ran the deal and recived a p0301(cylinder #1 missfire detected) code. The problem has been slowly getting worse and soon fear valve and further damage to mechnical parts. Please I am stuck. Maybe a igintion module or or Idle air control or even worse the CCC comuter comand center. Any ideas?
have the same problem?
Tuesday, January 13th, 2009 AT 7:25 PM