I have been trying to run down an idle issue with my car for a month! Occasional stalling when at idle (seem worse now) and i have noticed if i drive an extended period on the hwy when i slow on an off ramp it surges to about 2,000 rpm's and after a few seconds drops to 500 almost stalls and eventually settles in at around 700 rpm's. I am getting stabillitrak service messages occasionally as well but not all the time ( could be unrelated but never know with these cars lol). Now that said on with what i have done:
1) Negative battery cable change.
2) Checked for vac leaks (changed intake boot and valve cover due to cracks and PCV).
3) Intake VVT solenoid.
4) Cleaned throttle body (dirty after 100,000).
5) Bank 1 O2 sensor upstream.
6) Reset ECU by pulling fuses for 30 minutes.
7) Unplugged throttle connector to see if idle changed and ran worse.
And now scan tool showed fault on fuel system A which is a first. I am at a loss on what to do next. any help would be appreciated. I am trying to keep it out of shop if at all possible and am willing to do work myself. Like to learn how to fix things myself. :)
1) Negative battery cable change.
2) Checked for vac leaks (changed intake boot and valve cover due to cracks and PCV).
3) Intake VVT solenoid.
4) Cleaned throttle body (dirty after 100,000).
5) Bank 1 O2 sensor upstream.
6) Reset ECU by pulling fuses for 30 minutes.
7) Unplugged throttle connector to see if idle changed and ran worse.
And now scan tool showed fault on fuel system A which is a first. I am at a loss on what to do next. any help would be appreciated. I am trying to keep it out of shop if at all possible and am willing to do work myself. Like to learn how to fix things myself. :)
Sep 13, 2019 at 4:39 PM
