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Rough Idle Questions-Need Suggestions
I recently purchased my first Porsche, a 1981 911sc coupe. So far, I love the car, however I am starting to experience some issues with startup/idle and a bit of rough performance at speed.
-On ignition, the engine sometimes sputters and seems to have a hard time catching its idle. (this doesnt happen every time I start the car) -On ignition, the O2 dash light comes on, and stays lit until about 15-30 seconds after ignition. -On ignition, a blip of the throttle is sometimes met with throttle hesitation and more sputtering. -On ignition, my garage has a slight odor of it running a bit rich. -While driving, there is a bit of backfiring when the vehicle is decelerating. (like when slowing down for a stop light, but still in gear) -While driving, occasionally a slight feeling that there is a loss of power, when not under moderate/heavy acceleration. A bit of background on the car: The engine was rebuilt about 40K miles ago, and the Cat was removed prior to my purchase. I'd love to hear advice on what I need to start looking for/testing to determine the cause. Thanks, I'm looking forward to many many miles of smiles with my new Porsche! |
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Join Date: Dec 1999
Location: Novato, CA
Posts: 4,740
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Quote:
Last edited by stlrj; 09-27-2013 at 02:07 AM.. |
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Tags |
idle rough running , rich mixture , rough idle |