rough idle, please help
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rough idle, please help
ok i have been over this whole car, gonna try cap, rotor, wires tomarrow, but i have a rough idle, sounds like a miss but vac/boost gauge is at 15, normally was at 25 vac side, let me tell ya what i did and have, 94 ls with gsr swap and JRSC, i got a rod nock so i replaced everything, crank pistons and rods, bearings seals rings head was redone too, so whole new motor, well i also up'd the boost to my max i can go and trying to break the motor in, i melted pistons, rings, both main and rod bearings and once again had to get new, even new head gasket, well when i fire it back up i got my rough idle problem and have sprayed carb cleaner everywhere and cant find a leak! do you guys have any idea's of what to look at next?i dont think it could be cap, rotor, wires but gonna end up getting new 1s just incase. like i said it seems like maybe a miss but vac gauge is low
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Re: rough idle, please help
its not that up down its a miss, and tuning place said to put 1000 miles on motor, but i had just burned pistons/rings and all bearings up, at 121 miles with a base tune. i had it running when had 10#boost, beat the snot out of it for 11months and gave it a rod knock so rebuilt all new and up'd to 14# boost and been having problems, I just pulled #1 cylinder plug wire off and motot\r didnt die down well i did them all but #1 didnt di down, my dad said plug wasnt firing and #2 doesnt look like doing to much better tho, but swapped plugs and still number 1 wont die down when pull plugwire
Last edited by jlfrnce; 12-14-2009 at 02:41 PM.
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Re: rough idle, please help
swapped out plugs for old 1s and still same issue, i got 180 compression all way across, I chaecked and got spark, its orange, my dad says should be white
#13
Re: rough idle, please help
I'm not to sure I know when you got a weak spark like that I would see if your friends or if you could by one for cheap its worth having a good one laying around
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Re: rough idle, please help
damn now it wont even start, with either dizzy in car, wtf? but when it was and after i drove around for lil bit the a/f guage(dummy) would go to lean side, so babied it alot to get home safe
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Re: rough idle, please help
plugs are brand new, and dont have this ohm tester to test Injectors, know of another way? now i runs, had a ground wire break off, but now also get a ecu code 22, so will clean out the vtec when i have daylight! when i drive around after it gets warmed up, it shows on the a/f gauge it is lean
Last edited by jlfrnce; 12-17-2009 at 07:48 PM.