03-29-2015, 03:17 AM
(03-29-2015, 02:18 AM)fixkick Wrote: yes, drive with the lamp flashing 12, see if it changes,
keep in mind the early ECU can get lost.
it can also go to backup mode (CEL DEAD)
lost is , like the fuel pressure is real low or too high and it can't inject correctly and gets lost but keeps trying hard.
tell me how you know it';s in limhome?
http://www.fixkick.com/ECU/LimpHome/failsafe.html
one trick if 02 sensor is funky is to unplug it see if car runs better, or worse.
Car drops idle to 500 to 600 rpm. Won't accelerate past 2-2.5k rpm or shift up. Barely drivable. Was on on ramp so continued for two or three miles at maybe 15-20 mph. Got off freeway and shut off engine. Restarted and it drove fine for about two miles. Stopped out of traffic with foot on brake but didn't shift out of drive. Tried to leave but it was back in limp mode. Didn't think to check CEL light but shut off engine and then restarted.
Was able to drive normally again.
What do you mean runs better without O2 sensor plugged in? Just idling or actually driving around?
1992 Sidekick, 4 door, 4-spd automatic, 1.6 L, 16 V, MPI