Engine misfires over 3k RPMs after timing belt change.
Replaced timing belt, water pump,
tensioner and serpentine belt. When
started engine runs fine at idle but
when I drive it (over 3k RPMs) the
engine misfires and crank shaft
position sensor comes on.
Note: Hondas require valve lash adjustment when timing belts are done. Ckp sensor codes can be caused by a bad cam sensor as well. Supposing engine ran fine prior to belt change i can only assume your timing is off. Which is not good. missfires occur because computer can not control your variable cam accordingly. Im not sure which engine u gave but most hondas are interference. Bad timing = bent valves Good luck
Thanks so much, will keep digging.
Double check the cam timing, the Isuzu engine in this very picky about its valve timing.
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#2Patrick Jay RReputation530