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  1. New Members Area
    I have a 2009 smart coupe and it is rough on idle - but when I slightly step on the gas it run smooth. The engine light is on - gives me a code P0302 cylinder # 2 misfire. I change the plugs and change the ignition coil. The code reappear after reset. If I clear the code and take the car for...
  2. New Members Area
    Hi, I own a 2009 smart car. It has 85000 miles and driven to work round trip 84 miles a day. My avg. speed driven is 70 miles per hour. I'm experiencing a rough idle and occasionally throw a P0303 code. I've reconditioned the fuel injectors, replaced #3 coil, performed compression test changed...
1-2 of 2 Results