93 oark ave missing at all speeds please help
#1
93 oark ave missing at all speeds please help
i have a 93 park ave 3.8 vin l check engine light is off but it shows a code23 at times it will run perfect and others it misses at all speeds i have changed feul filter spark plugs and wires iat senser crank sensor and balancer cleaned ecm grounds tried coils ing module ecm and also replaced upper and lower intake gaskits please if anyone has any ideals what going on please let me know thank you
#3
ya sorry i forgot to add that i check feul pres it was right with specs and i also checked vaccum lines and i sprayed around the intake no change this thing is driving me crazy when it runs good and next time it missing grrrrrr
#7
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Misfires can be caused by bad plugs, bad plug wires, bad coil, bad ICM, bad fuel injector(*), low fuel pressure, burned or bent valves, broken valve spring, bent push rod or rocker. Go threw each.