dorathexplorer98
New Member
- Joined
- March 12, 2015
- Messages
- 2
- Reaction score
- 0
- Year, Model & Trim Level
- 1998 Explorer
I have a 1998 ford explorer with the 4.0 v6. im getting a P1151 Lack of HO2S-21 Switch, Sensor Indicates Lean. i checked the live feed and even after the o2s are warmed up there is no voltage and -100% STFT for all three sensors.
Checked the harness to make sure it wasnt damaged. i conducted a signal and heater test my haynes manual says to try and im not getting a reading for either. does this mean its a bad ground. any help would be awesome.
Checked the harness to make sure it wasnt damaged. i conducted a signal and heater test my haynes manual says to try and im not getting a reading for either. does this mean its a bad ground. any help would be awesome.
