I have a 97 accord ex sohc stock motor except short ram intake and axle back exhaust, I just bought a chipped and programmed ecu and now it seems I am loosing fuel pressure at higher rpm. The power starts to fall at WOT at about 3000-3500 rpms, do I need a high flow fuel pump, a fuel pressure regulator and high flow fuel rail?? I expected the new computer to adjust and manage the fuel for best performance but I am not sure what is happening??

 

so what kind of prgram and ecu?

 

IT IS A FULLY PROGRAMED AND CHIPPED OBD1 P0A MUGEN RACE ECU. i AM USING THE OBD2-OBD1 CONVERSION HARNESS.....
UPGRADED AIR/FUEL RATIO
ADVANCED TIMING,
VTEC ENGAGEMENT@ 2500rpm's
REV LIMITER@ 8500rpm"s
NO SPEED LIMITER
FOR M/T or A/T
i BOUGHT IT ON EBAY FROM A REPUTABLE ECU DEALER, I AM SENDING IT BACK AND HE'S GONNA SEE WHAT IS WRONG AND SEND IT BACK, HOPEFULLY THAT WORKS...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by planomatt &raquo;</TD></TR><TR><TD CLASS="quote">
VTEC ENGAGEMENT@ 2500rpm's
</TD></TR></TABLE>

hopefully thats a typo ... or then it would explain why no power at 3500 ... usually early limiter is from bad eprom or solder connection.

 

well that is what it was advertised as.... i honestly dont know when the v-tec is engaging...

 

just some fyi, you're risking your $$ when you buy an 'ebay chip'.