P1101 on Chevrolet
On GM and GM-era Saab engines, the airflow worked out from throttle position doesn't match the airflow measured by the MAF and MAP sensors
Severity: Inspect soon
An air leak or sensor error upsets fuelling and, on some GM turbo engines, triggers a Reduced Engine Power message. It usually isn't an emergency, but a steady check engine light should be inspected promptly.
This page covers only what differs on Chevrolet. For what P1101 means, the ranked causes and the test order, see the P1101 guide.
What's different on Chevrolet
ChevroletYour car
2011–2019 · Cruze
Supported by vehicle dataGM has a repair for P1101 and ties it to crankshaft oil leaks on 2016-2019 models. Whether the bulletins are still current is not verified.
2013–2019 · Trax
Supported by vehicle dataAir cleaner housing check for P0171/P1101. Whether the bulletin is still current is not verified.
2013–2022 · Malibu
Supported by vehicle dataCharge-air cooler O-ring and crankshaft oil leak bulletins mention P1101. Whether the bulletins are still current is not verified.
PI0907CStatus unverified
Check engine light with P1101 (Cruze, Sonic, Trax, Encore)
2011–2017cruze, sonic, trax · issued · NHTSA 10135296
Repair information for the check engine light with P1101. Also Buick Encore.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
20-NA-047Status unverified
Front or rear crankshaft oil leak with MIL and P1101
2016–2022cruze, malibu, equinox, trax, volt · issued · NHTSA 10230607
Front or rear crankshaft oil leak with MIL and P1101. Also Buick Encore and GMC Terrain.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
Sources and review
- PI0907C: Check engine light with P1101 (Cruze, Sonic, Trax, Encore)
- 20-NA-047: Front or rear crankshaft oil leak with MIL and P1101
- PIP5240F: P0171 and/or P1101: inspect air cleaner housing (Encore, Trax)
- PIP5402E: P015B or Reduced Engine Power with P1101: check charge air cooler coupler O-ring
- 2023 Integra Owner's Manual: Indicator, Coming On/Blinking
- DTC P0068 or P1101 (2011 Saab 9-4X, V6 engine management)
- Last reviewed
- Written by
- Saurabh K.
- Editorial review
- Pending
- Technician review
- Technician review pending
This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error