hey i have a pr3 ecu with a mugen like program on it. i know these programs run considerably richer than stock. this is the reason im having trouble passing emissions. so i bought an s-afc and i need to know how much fuel to take out so my motor doesnt got POP!
please help me
my emissions test results were
CO. limit 20.00 my test 51.07
thas also running woth out a cat please help

 

glad to be in FL. no test here i run without a cat too.

 

wow that didnt kelp me at all

 

lean it out with a adjustable FPR

 

DOES ANY ONE READ?
i already have the afc on the car thats what i want information on
not how great it is to not have to pass emissions
not othere setups i <u>could</u> use( i know there are pleanty)
but how lean to set my afc to pass emissions
if you dont know dont waste my time

 

just lean it to hell the test is what 60 seconds i dont think it will blow in such a short time, every motor is going to be different so someone cant tell you how much to lean YOUR motor, especially with some unkown hack program running it, why dont you just get a stock ECU, it will pass fine, or buy a wideband O2 if you are worried about blowing your motor. read the instructions on the box for the afc, there is no way to tell how lean you are without a wideband or dyno

 

Take it to a dyno and spend what, $100 to get it tuned? You'll get better driveability, more power, mileage, and you'll be able to pass emissions. Otherwise all that **** on your car is just getting wasted.

 

Well you will never pass without a catalytic converter..so thats your first priority. Then on the afc i would go about -5 about. Maybe try up to -10. It will also advance the timing so be careful. You might want to retard the base timing a couple degrees.

 

ok i will try that thanks

 

Put a cat on....tune your car....go get e-test.

 

i have a cat im was going to put it on the whole time i found a stock ecu for the time being so i just going to plug that up and say expletive the safc