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  1. Megane Scenic 1.4 K4J intermittent perf

    Engines
    About 1000 miles after a new cam belt, began to hesitate and sometimes with a violent judder which felt like a fire at 180 degrees out. Then carries on driving. Engine management light came on. Took to garage with computer to read codes: O2 sensors. O2 sensors both changed - no change. Never...
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