2.4 turbo Hyped
15+ Year Contributor
- 575
- 3
- Jan 6, 2004
-
Portland,
Oregon
This has been going on for some time now. My low fuel trim is maxed out lean and I dont have anymore adjustment on my idle knob on my maft. My low fuel trim is at 140%. The o2 trim cycles at 167% or just goes into closed loop cause it cant correct enough for it. My fuel trims are as follows 140-103-88:l-m-h. Now If I turn the ac on the low fuel trim will trim up to around 100% where its supposed to be. The only thing I can figure is that with the 2.4 motor the stock ecu fuel maps wont make up for the flow. While cruising my trims bounce around 100% on the o2 trim. This is a strange problem that I would like to correct. Someone out there has the answer to this problem. Before the 2.4 the fuel trims were fine.