B_Dizzle
06-18-2007, 02:06 AM
Well first off heres my setup:
redtop
gt25r
550 cc's
power fc
megan fpr
3in all the way
ect,ect
Well I got the car dyno tuned after i installed the turbo,inj's, and power fc. It dynoed at 310 rwhp. the oly prob was a misfire at the top of the rpm range, and it stalled on deceleration. the guy said to regap my spark plugs to .28 and that should fix it. well since then i regapped them, added a k&n filter, and a splitfire ignition system. it still hasn't stopped stalling but helped the misfire a little. since then i've tried recirc the bov, and removing the bov, but it still stalls. it was running fine until it started hesitating at random rpms. usually it would hesitate in first gear under load, then if i tried to do a 3rd or 4th gear pull from 3000 rpms all the way up to 7000, it would hesitate at around 5 or 6000, then all of a sudden full power, then maybe hesitate later. really intermittent.
so i adjusted my tps to .45v according to my power commander. and took the spark plugs out and cleaned them. after i put them back in and started the car, it just surged from 400rpms-around 1500 rpms up and down(i also messed with the iacv screw trying to counteract the stalling) then things just got progressively worse as i tried to troubleshoot using the power commander and the next time i started the car i couldn't keep it running. i would try revving but the engine wasnt responding to the gas pedal 90% of the time but when it did catch and rev it would miss badly and backfire, then just die out.
5 min later i tried to start it and it started, went up to 1000rpms, then just dies. with no feedback from the gas pedal. so i changed ecus to a stock chipped ecu(for z32 maf,550ccs,ect) and now the car runs fine except stalling every now and then and running really rich(im thinking due to the fp still being turned up) but it doesnt do the hesitation thing when doing a gear pull. i can't figure it out.
sorry for such a long post but it was the only way i could explain everything. please help.
redtop
gt25r
550 cc's
power fc
megan fpr
3in all the way
ect,ect
Well I got the car dyno tuned after i installed the turbo,inj's, and power fc. It dynoed at 310 rwhp. the oly prob was a misfire at the top of the rpm range, and it stalled on deceleration. the guy said to regap my spark plugs to .28 and that should fix it. well since then i regapped them, added a k&n filter, and a splitfire ignition system. it still hasn't stopped stalling but helped the misfire a little. since then i've tried recirc the bov, and removing the bov, but it still stalls. it was running fine until it started hesitating at random rpms. usually it would hesitate in first gear under load, then if i tried to do a 3rd or 4th gear pull from 3000 rpms all the way up to 7000, it would hesitate at around 5 or 6000, then all of a sudden full power, then maybe hesitate later. really intermittent.
so i adjusted my tps to .45v according to my power commander. and took the spark plugs out and cleaned them. after i put them back in and started the car, it just surged from 400rpms-around 1500 rpms up and down(i also messed with the iacv screw trying to counteract the stalling) then things just got progressively worse as i tried to troubleshoot using the power commander and the next time i started the car i couldn't keep it running. i would try revving but the engine wasnt responding to the gas pedal 90% of the time but when it did catch and rev it would miss badly and backfire, then just die out.
5 min later i tried to start it and it started, went up to 1000rpms, then just dies. with no feedback from the gas pedal. so i changed ecus to a stock chipped ecu(for z32 maf,550ccs,ect) and now the car runs fine except stalling every now and then and running really rich(im thinking due to the fp still being turned up) but it doesnt do the hesitation thing when doing a gear pull. i can't figure it out.
sorry for such a long post but it was the only way i could explain everything. please help.