Rough super low idle and Heavy Vibrations

2001 SATURN L200
76,000 MILES • 2.2L • 4 CYL • FWD • AUTOMATIC
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NIKEBEN96
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My car has a normal cold start, but when it is heated up, it idles super low and vibrates way too much, not just in drive, but when in neutral as well. I feel it might be the intake manifold is clogged somewhere, from what i have seen from similar Saturn problems on this site, anyone have any suggestions on how to fix a low idle problem on this Saturn L200? Thanks!!!
Oct 6, 2014 at 7:26 PM
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SATURNTECH9
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With the car in drive and idling low turn on the Ac if it works?Does the idle smooth out?If so you need a updated engine control module calibration.I have seen that before on those cars when I worked at the saturn dealer.
Oct 6, 2014 at 8:13 PM
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NIKEBEN96
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How do i update the Calibration on the ecm?
Oct 6, 2014 at 8:21 PM
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SATURNTECH9
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You would have to take it to a gm dealer and have them do it.Its not a diyer job.
Oct 6, 2014 at 8:51 PM