Question about 1992 Cadillac DeVille

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I have a 1992 Fleetwood cadillac special 60 edition. I have changed plugs,wires,fuel filter,pvc valve,air cleaner, cleaned egr valve and throttle body. I have no codes coming up in the computer except ccr light is on. When I step on the gas it shakes but at an idel it runs fine. However, when I first start the car it runs rough until it warms up. what could be wrong?

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Did you change the cap and rotor if so check to make sure you didnt cross a spark plug wire when putting new wires on

Posted on Nov 19, 2009

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