Mabii

I'm completely lost, I have replaced every thing new plugs,wires,cap,rotar new dizzy, dyna mod thing that goes on the dizzy coil was upgraded with a crane fireball coil, allso replaced the fuel filter and cleaned the maf and tps the car isnt throwing a check engine light. Does any one have any idea what could be causing this?

grnstang

i think it is that little module you have for the distributor. one of my buddys had an accel one and it messed his car up, and it was fine when he took it off and kept it stock. what is done to your car? clean your sensors

Mabii

It was doing it before I replaced it with all that stuff ive just done that to fix it the only thing the car has is a custom exhaust and a b&m short shifter.

Mabii

I went and bought the actron cp9015 code scanner from autozone and used it.
When I did the koeo test I got code 67 and 33 which says egr valve posistion sensor or pressure feedback egr sensor indicates egr valve is not opening or egr valve position sensor or pressure feedback egr sensor indicates egr valve not seated properly. When I did the koer test I got codes 41 91 and 33 again 41 is exhaust gas oxygen sensor voltage signal always lean does not switch, 91 is exhaust gas oxygen sensor -signal coltage allways indicates lean either during engine run self-test or normal engine operating conditions. Now my question is could any of these codes cause the problem im having right now?

grnstang

i didnt really understand what you said but if there is an o2 sensor issue, buy new sensors because that could cause your problem. also change your fuel filter while your at it..i didnt think of that before

Mabii

Did the fuel filter.

grnstang

did you check into some new o2 sensors? i'm not sure if they cost a lot or not...but that will probably fix your problem. is your MAF clean? there is a cleaner called MAF cleaner it comes in an aerosal can and it works really nice

Mabii

I cleaned every thing but I need to check the egr valve.

grnstang

keep me posted im interested

1995mustang818

egr valve isnt ganna do anything for your car mine is disconnected from the codes the scanner gave you it looks like you need o2 sensors