System too rich
-
- Posts: 31
- Joined: Wed Feb 19, 2020 12:42 am
System too rich
So I've been getting a system too rich check engine light, and verified short term fuel trims are -22. I tried leaning out the air fuel wheres trims are -5 but my widebands telling me its 16:1 air fuel which is way to lean. Anythoughts? Closed loop is set to stock sensor reading and open loop is set to wideband on d12.
Re: System too rich
You cannot run closed loop from an after market wideband.
What Wideband are you using?
What Wideband are you using?
-
- Posts: 31
- Joined: Wed Feb 19, 2020 12:42 am
Re: System too rich
Its a plx unit I have the stock o2 sensor for closed loop purposes. I was just referencing what my wideband reads to how much fuel the ecus pulling.
Re: System too rich
The stock sensor is a wideband. I would only use that and see what it reads. If it is too rich then it is probably a tuning issue.