need help diagnosing vtec sputter
to begin with heres my setup, race-ported alaniz b16 head on a 94 jdm gsr block which is stock, itr headers, ctr cams, intake advanced 2 degrees, everything else including timing is stock, im running a obd1 jdm p72, fpr set at 48psi
heres my problem: laetly my check engine light has been turning on, but only when im in vtec or puching on the gas WOT for long periods of time, like just sruising on the freeway it'll eventually turn on after like 10 minutes of driving, after that the car runs like ****, i though it was the O2 sensor but why does my powerband keep fluctuating i'll be driving normal but between 3-5 thousand rpms the motor feels like its hesitating, im thinking it might be my ignition since the motor starts up kind of groggy not like my homies si where it just starts up all quick, i have a new battery, i already replace my ignitor coil in the dizzy like 6 months ago, maybe it went bad again, im planning to go with a external coil.
but this started happening recently, my oil light turns on now and then but only when im turning, vtec doesnt kick in until i let off and gas it again, another time i was gunning it then the check engine ligt came on and vtec sputtered and started running like ****, i let off immediatly. my oil levels seem fine, could my vtec seloniod be goinf bad? the car sounds like its misfiring sometimes as well, but only when the check engine light is on
i really need some opinions, thanks
heres my problem: laetly my check engine light has been turning on, but only when im in vtec or puching on the gas WOT for long periods of time, like just sruising on the freeway it'll eventually turn on after like 10 minutes of driving, after that the car runs like ****, i though it was the O2 sensor but why does my powerband keep fluctuating i'll be driving normal but between 3-5 thousand rpms the motor feels like its hesitating, im thinking it might be my ignition since the motor starts up kind of groggy not like my homies si where it just starts up all quick, i have a new battery, i already replace my ignitor coil in the dizzy like 6 months ago, maybe it went bad again, im planning to go with a external coil.
but this started happening recently, my oil light turns on now and then but only when im turning, vtec doesnt kick in until i let off and gas it again, another time i was gunning it then the check engine ligt came on and vtec sputtered and started running like ****, i let off immediatly. my oil levels seem fine, could my vtec seloniod be goinf bad? the car sounds like its misfiring sometimes as well, but only when the check engine light is on
i really need some opinions, thanks
havent checked it yet, i use to know but i forgot how two, i basically forgot which part to stick the paperclip ends to
finally figured out how to check the codes, well its throwing a code 7 or tps, i got a gsr max bore tb, i had the tps reset by my mechanic, but i did a couple searches and it seems some people have had similiar problems, i dont know whats wrong, should i reset my tps or ecu, the car runs fine sometimes then it starts to hesitate along the powerband
Thread
Thread Starter
Forum
Replies
Last Post
ITR.#1446
Honda Civic / Del Sol (1992 - 2000)
17
Dec 23, 2006 07:04 AM




