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Misfire HELP!!

BigBlueXj

NAXJA Forum User
Location
NY
2000 Cherokee Multiple misfire, 1, 2, n 4 cylinder replaced , coil rail n plugs, cleaned intake, checked for vac leaks,swapped computers, bought scanner, noticed that the freeze frame displays sensor info upon a thrown code. for some reason my map sensor and rpms are at zero values everytime the codes are thrown. could it be wiring, ive been chasing this mil light for 8 months
 
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