Ok, I have a 1993 2.3L Automatic Conv, and its got 232k (So I was told- Runs like a champ and doesn't burn a drop of oil).
I was getting some intermittent Codes (186-172) a couple months ago and which verified it was running lean so I changed the fuel filter and a tensioner and pulley that had failed.
The new fuel filter seemed to help for a couple weeks since it wasn't pushing codes and it wasn't hesitating as much... but the last few days its been pushing codes pretty often so I pulled them and here's what I got.
172-Heated O2 Sensor/HEGO Sensor Indicates Lean Right Side
181-Fuel system still lean at richest adaptive limit during part throttle
186-Injector Pulse Wider than expected
223-Loss of dual Plug Inhibit Control
224-Erratic IDM input to processor
116-ECT out of self test range 0.3 to 3.7 volts.
411-Cannot control rpm during KOER low RPM check
Basically I am hoping that someone can help me figure out where I should be looking in order to fix these problems and if these problems point to a larger more specific problem. Hopefully I am making sense- its been a long day.
I'm not sure if its related/valid to the discussion but I do have some trans
issues lol. It slips at lower gears and doesn't like going up major hills in the lower gears after it warms up. but with some lucas transfix it works fine for me as a daily driver- you just gotta know how to drive her.