im having a problem with my 200sx (yes its a fwd, who knows why i traded my sr s13 for it) any how i have a turbo sr20de+t 97 200sx ser. at wot it runs very lean to the point where i hear it misfire . basically if i floor it , from 4500rpm and up to redline it will misfire. it does this alot at wot but less if i slowly accel through the powerband. it also doesnt seem to do this when cold.
i have a gtir t28 at 11psi. when i run 7psi i dont hear it misfire.
im running bkr7e gapped at .028 and my timing is 15btdc
i have a jwt ecu that is tuned for my siemens 72lb injectors at 3 bar and cobra maf . i also have a aeromotive fpr set to 3 bar with the vacuum line off. in addition i have a walbro 255lph fuel pump that i just bought maybe a month or 2 ago. i set my fpr to 4 bar to see if i could richen it up , with no luck, i also installed a neo to richen it up again no luck. still misfires. im out of ideas . i regrounded the maf as well. tried rotating the maf too. im running blow through setup as well with at least a foot of straight pipe after my maf and into the tb. i have never blown a coupler and pipes seem to be tight, and they are clamped as much as possible with solid t clamps.
ive also posted this on the sr20forum but im getting no where
mid to high end popping wot - SR20 Forum
any ideas?
07-06-2009, 07:53 PM
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