Fox T-Bird/Cougar Forums  

Read this thread and try pulling codes again. (ignore the last post #10 in the thread)
You may or may not have a working check engine light. If the CIL doesn't blink, use the meter or test light method.
http://www.foxtbirdcougarforums.com/showthread.php?t=8897&highlight=pull+codes

I watched this thread, he doesn't have codes , no 11 no nothing. he has no o2 sensors, instant light on computer will run it's own thing. He either doesn't know how to read codes or I don't know. You have to have a code from the ecc without O2'S. The comp needs that.

I watched this thread, he doesn't have codes , no 11 no nothing. he has no o2 sensors, instant light on computer will run it's own thing. He either doesn't know how to read codes or I don't know. You have to have a code from the ecc without O2'S. The comp needs that.

ok, i got a code 11, but if after i start it, hold it at 3 grand, you can hear the computer make adjustments and then it will run fine all day long...now im more confused then i was, and it is running fine without the o2 sensors...like i said, its now just when i start it up that it struggles to keep goin'

i think the o2 sensors are an extremly important part of the sefi system.  The computer needs communication from every input sensor in order to properly run the engine.  It's not like retro fitting an old school carbureted engine with aftermarket fuel injection....where you can choose not to use o2 sensors if you want.  Don't the headers have a spot for the o2 sensors?    The following is an excellent website to read and understand fuel injection:  http://www.fordfuelinjection.com/

i would gather codes and add the o2's.  But that's just me,  though.  In the past year on this forum i've learned enough to do basic trouble shooting.  I am in no way an expert.....yet.  In fact it feels strange chiming with advice cause all i ever do here is ask questions.......

My 88 does the same no acceleration past 1/8 to 3/8 throttle , it barks spits backfires through the intake mine has the o2s ,completly stumped ready to pull all that  off and run a carb

My 88 does the same no acceleration past 1/8 to 3/8 throttle , it barks spits backfires through the intake mine has the o2s ,completly stumped ready to pull all that  off and run a carb

My car was doing the samething. Mine ended up being a bad EGR valve. I blocked it off because I had already replaced it once and didnt want to waste money on another. Now it runs great.