Originally posted by fordman302:
Well i just replaced the o2 sensor and reset the pcm and the check engine light hasnt come back on and car is runing alot better a/f ratio is right again.Why would it be a waste of money?
The PCM takes time to run through the OBD II cycle. It won't show a CEL until it goes through the whole cycle. You did not have enough info to determine that it was the O2 sensors which was causing the fault. Definitely not the lower Bank 1 and lower Bank 2 sensor (which is why Projectsho89 said you would be wasting your money).
Incidentally, why did you replace the lower O2 sensors when you planned on installing mileliminators?
Edit. Differential Pressure Feedback EGR.
Originally posted by chongo:
Did someone call me out.......LOL
here you go. 
Last edited by Tony2005; 06/04/06 03:40 AM.
