P2297 code meaning
O2 Sensor Out of Range During Deceleration (Bank 1 Sensor 1)
Powertrain system Generic code P22xx codes Check engine light
What P2297 means
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 gasoline 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.
P2297 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyEasy, DIY possible
- Typical labor0.3 to 1.5 hours
- Clears after repairAfter a drive cycle
Symptoms of P2297
- Malfunction indicator lamp on after two trips
- Usually no noticeable change in driving behaviour
- Possibly stored with P0133 or fuel-quantity codes
Common causes of P2297
- Most 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
- Less likelyEngine software needing an update (GM 3.0L LZ0 2024, bulletin 24-NA-094)
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Oxygen sensor
What each part of P2297 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 2 | Area: fuel and air metering (injector circuit). |
| 97 | The exact fault in that area. |
What to do next
- Note P2297 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2297
What does P2297 mean?
P2297 means "O2 Sensor Out of Range During Deceleration (Bank 1 Sensor 1)". 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. It is a generic code, so it means the same on every make.
Is it safe to drive with P2297?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P2297 fail an emissions test?
Yes, it can. P2297 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2297 to fix?
Difficulty: easy. A typical repair takes 0.3 to 1.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P2297 clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.