ok i have a 98 civic cx, i put a 98 ex intake manifold on my car. today i put the AEM cold air intake on my car, and now im getting a code 45 which is "system to lean or rich" wtf I though a intake is a plug and play thing, i have never seen this problem on any other civic or integra. my friend who is better then i am with hondas, sais i should get a B&M fuel regulator or something, we are about to put a 96 prelude si fuel regulator on to see if it throws away the code, i mean i would rather run to rich then to lean. here we go, if anybody know what the problem is hit me up asap, thanks in advance.

steve

 

Did you swap injectors with the intake manifold?

 

I don't know what the problem is but i am getting the same code. i have a complete fuel system upgrade including holly fuel pump,aem regulator,filter,fuel rail, and venom injectors. i also have an aem cold air intake. the wierd thing is the cel just comes and go's every now and then. if any one has the solution to this i would also like to know, this **** is pissing me off!!

 

Have you had someone tune the engine?

Get an A/F guage or a EGT to see what you are running..or look at the spark plugs.

Maybe you are forcing too much fuel in.

 

I agree, whats the point of having a FPR if you don't tune with it?

So A/F guage + modify FP =

 

ok I fixed the problem, we had the wrong sensor in the wrong hole. lol sorry to waste everyones time. its running great now no code no nothing thanks again.

steve

 

i've tried all of that with no luck! thats the hole reason i got my air fuel gage and fpr.

 

hmm, it could be a fault ECU then..


[Modified by StyleTEG, 11:40 PM 7/11/2002]