like it says my 90 p/u 4wd with 22re has the check engine light one and i did the code check and came up with 25 26 and 41... it has a fairly new o2 sensor and i just replaced the tps with a used unit.. my question is what has you guys found to be the problem with these codes? any help is greatly appreciated

 

What sort of O2 sensor (brand)? Did you test either the old or new TPS?
- http://www.4crawler.com/4x4/CheapTricks/TPS/index.shtml

If all OK, check wiring between sensors and ECU. Best sensor(s) in the world do squat with bad wiring.

 

ya i tested them but my pos multi meter im unsure if it was reading correctly or not