Negative fuel trim? (-20)?
#1
Negative fuel trim? (-20)?
Hello,
After getting the gizmo to diagnose a CEL, I have been fascinated by it, and maybe overthinking it? However, I noticed that my Long term Fuel Trim on both banks is around -20. Is it not supposed to be around 0? I have no CEL, but I will list 2 things that may be affecting my fuel trim?:
So, is the negative fuel trim OK? Or is there something to look for?
2003 Infiniti G35 Coupe
140,000 Miles
Mods:
Stillen Z Tube
Motordyne Plenum Spacer
After getting the gizmo to diagnose a CEL, I have been fascinated by it, and maybe overthinking it? However, I noticed that my Long term Fuel Trim on both banks is around -20. Is it not supposed to be around 0? I have no CEL, but I will list 2 things that may be affecting my fuel trim?:
- Exhaust leak at the Flex joints on Y pipe
- My car once stalled after flooring it (Once I came to the stop the car stalled) and P0340 showed as pending, but no CEL, hasn't happened again.
So, is the negative fuel trim OK? Or is there something to look for?
2003 Infiniti G35 Coupe
140,000 Miles
Mods:
Stillen Z Tube
Motordyne Plenum Spacer
#2
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#3
Join Date: May 2017
Location: Washington State
Posts: 14,799
Received 2,458 Likes
on
2,152 Posts
Coupe 6MT Premium RAS
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