just like the title says...what should i do? i run regular 87 gas in my 97' rs with stock internals, huge intake, dc 4-1 headers, silicone spark plug wires(resistance of 122-123...measured), and....

double platinum spark plugs

 

You throwing any CEL's? You might need an injection service, dude. It shouldn't be running super rich with just a couple of bolt-ons.

 

no cel's...u think fuel injectors??

 

run some fuel injector cleaner maybe?

 

02 sensor, I was runnin rich as hell, was'nt throwing a CEL or anything, changed the 02 sensor and bam, problem solved.

 

ok well i got the same problem with black as crap plugs but i changed my o2 sensor and now it wont start unless i unplug the o2 sensor

 

i replaced the o2 sensor about 3 months ago, before the cat, with a bosch one...think it could be the problem? or should i try a fuel pressure regulator w/ a gauge?

 

I think I just bought the ECU from you on e-bay. Thanks. I am having the same problem with my 2001 GSR. It fouls the plugs and will barely run when it is cold. It is running so rich that the plugs will foul and I have to take them out and clean them for it to run again. I checked the MAP, ECT, IAT, O2 sensors. I am going to have the ECU programmed and see if that fixes it. My fuel pressure is perfect and I tested the injectors and they are all firing with a good spray pattern.

Any thoughts?

 

what are you plugs gapped to?

 

yes you did buy the ecu off of me! haha what a small world; but um I don't know why this is happening...my spark plugs are on snug, double platinum-dont know how to measure the gape

 

i don't believe it would be the ecu, but i can see it being the o2 sensor in ur case, but like i said i just replaced mine...anyone know of a write-up that refers to this problem for us 2 with it???

 

bump

 

bump

 

bump

 

have you reset the ecu?

 

yes multiple times recently because i just replaced thermostat n fuel pressure regulator

 

test your coolant temp sensor. i see them cause alot of rich conditions and foul plugs out.

 

^^^^^ beat me to it, but yeah, my buddy swapped motors between his DA's one coolant temp sensor was slow, and up til that point, I have only seen turbo hondas run that rich at idle, lol

 

check your timing...and if its retarded advance it by a couple of degrees dont pass 18 and yes your running rich

 

well my c/h gauge was going down and up and when i replaced the thermostat it fixed that problem...now it sits steady at right under a half no matter if im idling or accelerating...

still replace sensor u think??

 

update....

installed fuel pressure gauge last night and when idling it is at 32 psi=fine...

could the fuel pressure regulator be bad even if the pressure is fine??

 

could be bad, but i never seen a fpr go bad.