- Joined
- October 6, 2008
- Messages
- 755
- Reaction score
- 84
- Location
- Va
- City, State
- chesapeake virginia
- Year, Model & Trim Level
- '96 xlt 4x4
OK so I got a bank 1&2 rich codes the other day I reset the codes now I'm monitoring the live data from the scanner my concern is the o2 sensors fluctuate normally after the engine goes into closed loop then I check them again after a 10 minute drive and there sticking around .8 volts and the fuel trim is constantly in the negative LTFT is about -6% STFT is about -15% after warm up no codes but I have gotten o2 sensor code not to long ago but hasn't come back since I reset it the problem is I intermittently get so stalling acceleration from a stop and a little spuddering from here to there
Things if checked:
vacuum pressure
Fuel pressure
Injector leak down
Exhaust leak
Maf voltage
Tps voltage
Replaced dpfe sensor
All of these things passed
What am I not looking at ? I also get a evap gross leak code so I loosen gas cap and it keeps that code at bay for some reason a bad canister vent cause this ?
Things if checked:
vacuum pressure
Fuel pressure
Injector leak down
Exhaust leak
Maf voltage
Tps voltage
Replaced dpfe sensor
All of these things passed
What am I not looking at ? I also get a evap gross leak code so I loosen gas cap and it keeps that code at bay for some reason a bad canister vent cause this ?
