i have been searching for the past 2 months for my problem but no one seems to have the same issue as mine. i have a 94 civic ex with jdm gs-r swap. mods are i/h/e/msd external coil/blox im tuned on hondata s100 on p28. when driving at steady throttle say 45 mhp, i get a check engine light and it registers fuel pressure supply.i forget what the number was but this is all i remember when i look up on the haynes manuel. when i shut the engine off and restart it again the mil goes away. the motor is completely stock except for bolt on mods.idle is smooth and performance runs very well. i dont know what to do at this point. can any pls help me . thx h-t.

 

bump. pls help me

 

have you talked to the tuner who tuned your chip yet? that is the most important person to be talking to about it.
and the number should be code 43 which could be:
bad o2 sensor
bad o2 sensor wiring
bad ecu
air leak into the exhaust
valve adjsutment needed

 

i had it tuned by bubba. he says to replace the oxygen sensor but i highly doubt thats the problem otherwise the check engine light should be giving me the code for o2 sensor. pls anyone with this type of problem chime in. i dont know what else i should do. will adding a fpr work?


Modified by Humble1 at 8:31 AM 5/19/2005