Question about Saturn SL1
Sounds like a vacuum leak at the canister or vacuum lines, lift the hood, start the car and listen for a hissing sound after it warms up, on the fender/frontend area there should be a black canister with vacuum hoses connected, check all the hoses end to end for leaks, there is a vacuum that is created in the tank that is controled (vented gas cap), if there is no vacuum in the canister to the fuel tank, this will cause the check engine light to come on (faulty gas cap). vacuum leaks cause the RPM to increase, I am surprized that's the only code you have. most cars have a diagram under the hood of the emissions.
Posted on Dec 29, 2010
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Posted on Jan 02, 2017
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