my truck seems to hunt for idle and while trying different ideas i unplugged the o2 sensor and it ran smooth. i have already replaced the o2, ecm, iac, map, and a new stock chip. why will it run better in open loop? is there something i am overlooking?? any help would be great. if i leave it unplugged, will it trip an engine light??
o2??
- Thread starter danny
- Start date
Re: o2??
i'm using a scan tool, my readings are in the 900's at wot and at idle they go up and down like they should. i've tried fuel pressure with no change in idle, it still seems to search. the integator reading fluctuates also from 120 to 124, could this be part of the problem??? i am using stock injectors(just cleaned and flow matched) and i have reset iac and pulled fuses. i do get a code 45 sometimes when the truck sits for days but goes away. i've had this problem since day one and running out of options.
i'm using a scan tool, my readings are in the 900's at wot and at idle they go up and down like they should. i've tried fuel pressure with no change in idle, it still seems to search. the integator reading fluctuates also from 120 to 124, could this be part of the problem??? i am using stock injectors(just cleaned and flow matched) and i have reset iac and pulled fuses. i do get a code 45 sometimes when the truck sits for days but goes away. i've had this problem since day one and running out of options.