Hey guys Deezy here, havent been around in ages, just recently picked up my 4th 240 now. Having some very retarded problems with it... Car is a 1992 hatch, with close to stock s14 sr in it. Ive researched tons and tons but cant find the same problem im having, and troubleshooting and guessing with other peoples simmilar, but not same problems is making me about ready to shoot myself in the face... i need HELP!!
Ok so heres the small list of known mods to the car (I fucked up and bought the car with swap already done, and not running right....):
S14 SR20DET w/stock t28
w/stock boost
w/stock piping and IC
NGK 7 i think plugs, gapped at 35
Wiring Specialties Premade s14->s13 harness
Aftermarket fuel cell with walbro pump, brand new inline filters and brand new regulator
Jim Wolff Technology tuned ECU for Z32 MAFS with 370cc injectors
Z32 TT MAFS with circuit sports? Pigtail z32 adapter plug thing..
stock manifolds
cat delete
Andddd thats pretty much it i believe... Problem im having is this:
First crank start, bounces idle real high from around 3k to 1k for about one minute then smooths out and idles around 1100rpm.. in neutral, smash gas and will rev to redline without skipping a beat.
Put it in gear, do a pull and it pulls solid untill 4000rpm then starts POPPING and breaking up and will not rev past 4 in any gear unless the throttle is feathered like a baby. If i drive it just shifting near 3800rpm and being normal, it backfires about 1 out of 3 shifts, but can not smell it running rich or lean, blowing no smoke at all. Pulled the spark plugs yesterday and they look perfectly fine, maybe just a tad bit of carbon.. My mechanic and i seem to believe it has something to do with the MAFS, because it did sit under my carport for a few months off the car, condensation maybe messed something up? idk im not a MAFS expert... i did clean it the other day aswell, not difference.. Anything that you guys sugest will help me, any questions or anything im missing i will answer stat. Any help is GREATLY GREATLY appreciated!!!!! Thanks in Advance!
-Deezy :feedback::gc-wmsmiley-this-to
Ok so heres the small list of known mods to the car (I fucked up and bought the car with swap already done, and not running right....):
S14 SR20DET w/stock t28
w/stock boost
w/stock piping and IC
NGK 7 i think plugs, gapped at 35
Wiring Specialties Premade s14->s13 harness
Aftermarket fuel cell with walbro pump, brand new inline filters and brand new regulator
Jim Wolff Technology tuned ECU for Z32 MAFS with 370cc injectors
Z32 TT MAFS with circuit sports? Pigtail z32 adapter plug thing..
stock manifolds
cat delete
Andddd thats pretty much it i believe... Problem im having is this:
First crank start, bounces idle real high from around 3k to 1k for about one minute then smooths out and idles around 1100rpm.. in neutral, smash gas and will rev to redline without skipping a beat.
Put it in gear, do a pull and it pulls solid untill 4000rpm then starts POPPING and breaking up and will not rev past 4 in any gear unless the throttle is feathered like a baby. If i drive it just shifting near 3800rpm and being normal, it backfires about 1 out of 3 shifts, but can not smell it running rich or lean, blowing no smoke at all. Pulled the spark plugs yesterday and they look perfectly fine, maybe just a tad bit of carbon.. My mechanic and i seem to believe it has something to do with the MAFS, because it did sit under my carport for a few months off the car, condensation maybe messed something up? idk im not a MAFS expert... i did clean it the other day aswell, not difference.. Anything that you guys sugest will help me, any questions or anything im missing i will answer stat. Any help is GREATLY GREATLY appreciated!!!!! Thanks in Advance!
-Deezy :feedback::gc-wmsmiley-this-to
