I keep getting the multicylinder misfire code on my vehicle. I have replaced plugs and coil packs, run injector cleaner through the tank, checked for vacuum leaks, intake leaks, cleaned the mass air flow sensor, checked electrical connections on the injectors. All appears to be in good working order. You cannot tell the engine misfires and I do not notice any performance issues. The only reason I know there was a misfire is that approximately every 200-300 miles while I am driving down the road the check engine light comes on. I reset and it repeats. I am wondering what could be the issue or what I could try next. I have read that a blocked or bad catalytic converter could be a cause. Any ideas.
have the same problem?
Friday, October 9th, 2015 AT 7:21 AM