Question about Cars & Trucks
Running a i replaced new spark plugs already.
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: rough idle
check you throttle position sensor first then fuel pressure regulator, then fuel pump. i have a 92 and had to recently do a massive overhaul. my rough idle was caused by a malfunctioning tps with a small exaust leak causing it to race and an intake manifold gasket. also check your idle speed adjustment settings.
Posted on Dec 03, 2008
SOURCE: 1991 Camry running rich
check for vacuum leaks especially around the intake manifold gasket. Although the engine appears to be running rich, it could also be misfiring due to being too lean in one cylinder. When the cylinder doesn't fire the charge, it goes into the exhaust completely unburned and looks like a rich running condition due to the unburned fuel. If it is a vacuum leak causing the problem, the engine will run fine at road speeds but misfire at idle and not pass smog.
Posted on Feb 07, 2009
i would say try replacing the pcv valve and fuel filters if new carbs do the same thing iwould say cut your losses
Posted on Jun 03, 2009
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