jon_s_brady
Active Member
- Joined
- August 17, 2008
- Messages
- 69
- Reaction score
- 1
- Year, Model & Trim Level
- '05 XLT
05 Explorer 4.0 V6 SOHC...Banks 1 & 2 Short Term Fuel Trims bounce around 0 as they should. Bank 2 Long Term Fuel Trim is typically between 0 and +5%. Bank 1 Long Term Fuel Trim is at +20% at idle but drops to normal when RPM gets up around 1500.
I've found lots of comments about a vacuum leak being the classic cause for this when both LTFTs are high at low revs but I can't find anything to explain how this could happen on only one bank...
Opinions welcomed.
I've found lots of comments about a vacuum leak being the classic cause for this when both LTFTs are high at low revs but I can't find anything to explain how this could happen on only one bank...
Opinions welcomed.
