P2297O2 Sensor Out of Range During Deceleration (Bank 1 Sensor 1)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2297 concerns the upstream oxygen sensor of bank 1 and the moment when fuel is cut on deceleration and the sensor should read almost pure air. Diesel calibrations compare the reading in overrun with a modelled value: GM's 6.6L LML faults a gap between measured and calculated value above 0.06 to 0.07, the 3.0L LZ0 a deviation beyond 5 percent (Type B). On the 2023 Jeep Gladiator 3.0L diesel, Stellantis TSB 25-002-24 checks the O2 adaptation after a coast-down and replaces the sensor above 0.0282. Bosch-based petrol engines read the code the other way: with all injectors firing, a signal looking like fuel cut-off sets it (Saab 9-5 2011 LDK: 4 s, Type B; GM 2005 V6 LP1/LY7: over 3.7 V for 10 s). GM bulletin 24-NA-094 lists it for the LZ0; P2298 is bank 2.
- What you may notice
- Malfunction indicator lamp on after two trips
- Usually no noticeable change in driving behaviour
- Possibly stored with P0133 or fuel-quantity codes
- Likely causes
- LikelyUpstream wide-band sensor aged or drifted (wrong reading in air)
- PossibleExhaust leak ahead of the sensor drawing in outside air
- PossibleAir-mass or fuel model error (MAF, injector leakage, EGR) skewing the expected value
- RareEngine software needing an update (GM 3.0L LZ0 2024, bulletin 24-NA-094)
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Easy · Often possible to do yourself.Typical cost: €0 – €350
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.