tbars
New Member
- Joined
- Aug 7, 2007
- Messages
- 163
- Reaction score
- 0
- Points
- 0
- Age
- 63
- Location
- Anaheim Hills, Ca.
- Vehicle Year
- 95
- Make / Model
- Ranger XL
- Engine Size
- 2.3L
- Transmission
- Manual
...I know it might be a dumb question but seeing as I've only found 2, I would guess sensor 1 bank 1 is the upstream and sensor 1 bank 2 is the downstream sensor?
..I had a previous p1131 code which led me to a loose upstream sensor...Tightened and no problem since..
No codes problem?
..While at my buddies shop I asked him to scan my truck while running and just verify the o2 readings..S1B1 shows normal readings (say 700-900) but S1B2 is at zero and when the rpms are revved up I get 0-2 and back..
..I am surprised to not get a code but figured I would ask here as if the o2 sensor is weak I want to replace the correct one..
TIA..
..I had a previous p1131 code which led me to a loose upstream sensor...Tightened and no problem since..
No codes problem?
..While at my buddies shop I asked him to scan my truck while running and just verify the o2 readings..S1B1 shows normal readings (say 700-900) but S1B2 is at zero and when the rpms are revved up I get 0-2 and back..
..I am surprised to not get a code but figured I would ask here as if the o2 sensor is weak I want to replace the correct one..
TIA..