y am i running rich on a stock ecu

muha22752 · Post by **muha22752** » Mon May 26, 2008 5:55 am

ok so today when i was driving my CEL came on. got it cheacked out and it turnes out im running to rich, my question is how can i fix this if i still have a stock p5 ECU??

stlrollin6 · Post by **stlrollin6** » Fri Jul 18, 2008 9:26 pm

do u have mods? or something idk thast wierd usually with mods people run leaner not richer

99BlackHatch · Post by **99BlackHatch** » Fri Jul 18, 2008 9:45 pm

I'd help, but I can't understand anything in this thread so far.

HardCore97 · Post by **HardCore97** » Fri Jul 18, 2008 9:56 pm

mines a stock ecu and it runs rich too but my o2 sensor is bad

ObsesionWitSped · Post by **ObsesionWitSped** » Fri Jul 18, 2008 11:13 pm

Uhh, the solution is simple..you need to figure out what's causing it to run rich.

That, though, can sometimes get quite challenging.

miz92lude · Post by **miz92lude** » Mon Oct 13, 2008 3:34 am

Welcome to the prelude world. Oh give that thing a full tune up, you know plugs, plug wires, rotor, dizzy cap, fuel filter, some kind of injector cleaning like sea foum, and a oil change.

MaSSaCrE · Post by **MaSSaCrE** » Mon Oct 13, 2008 4:16 am

Not that rare blake is running a stock ecu in his si i believe and hes running rich as a hell

HondaChild · Post by **HondaChild** » Mon Oct 13, 2008 3:52 pm

MAP sensor or 02 sensor is fouled or wiring problem. I have had that happen to me.

slammeds2k · Post by **slammeds2k** » Fri Oct 17, 2008 1:32 pm

Could also be a coolent temp or engine temp if they go bad this can cause you computer to think that you vehical is always cold and it will greatly inrich ur stork mixture thus your problem.

92Accord · Post by **92Accord** » Thu Oct 23, 2008 1:24 am

i agree with the full tune up/ oil change see if that changes anything, if not then ur back to where u started.