P0172 on Chevrolet vehicles The engine is running rich on bank 1: too much fuel for the air going in
P0172 is named on 28 Chevrolet model years (2016–2026): 116 manufacturer filings and 0 owner reports in NHTSA’s files, across Equinox, Malibu, Suburban, Camaro, Silverado and 3 more.
Which Chevrolet model years name P0172
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2019 Chevrolet Equinox | Engine | 15 | — |
| 2019 Chevrolet Malibu | Engine | 15 | — |
| 2020 Chevrolet Equinox | Engine | 10 | — |
| 2020 Chevrolet Malibu | Engine | 8 | — |
| 2021 Chevrolet Malibu | Engine | 7 | — |
| 2021 Chevrolet Equinox | Engine | 6 | — |
| 2018 Chevrolet Malibu | Structure | 6 | — |
| 2022 Chevrolet Malibu | Structure | 5 | — |
| 2018 Chevrolet Equinox | Power Train | 5 | — |
| 2024 Chevrolet Suburban | Engine | 4 | — |
| 2022 Chevrolet Equinox | Structure | 4 | — |
| 2024 Chevrolet Silverado | Engine | 3 | — |
| 2023 Chevrolet Silverado | Engine | 3 | — |
| 2017 Chevrolet Camaro | Power Train | 3 | — |
| 2016 Chevrolet Camaro | Power Train | 3 | — |
| 2024 Chevrolet Tahoe | Engine | 2 | — |
| 2023 Chevrolet Suburban | Engine | 2 | — |
| 2023 Chevrolet Tahoe | Engine | 2 | — |
| 2018 Chevrolet Camaro | Back Over Prevention | 2 | — |
| 2017 Chevrolet Corvette | Power Train | 2 | — |
| 2016 Chevrolet Corvette | Power Train | 2 | — |
| 2026 Chevrolet Colorado | Not specified | 1 | — |
| 2026 Chevrolet Silverado | Not specified | 1 | — |
| 2025 Chevrolet Colorado | Not specified | 1 | — |
| 2024 Chevrolet Colorado | Not specified | 1 | — |
| 2023 Chevrolet Colorado | Not specified | 1 | — |
| 2022 Chevrolet Camaro | Engine | 1 | — |
| 2018 Chevrolet Corvette | Back Over Prevention | 1 | — |
A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.
Chevrolet filings that name P0172
Source: NHTSA manufacturer communicationsBulletins and campaigns Chevrolet filed with NHTSA whose summary names P0172. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- PIP5651 Service bulletin2019-05-21 · Power Train
- This Preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codes P0172, P0299, P0101, P0506, P1101.
- PIP5651A Service bulletin2019-06-12 · Engine And Engine Cooling — Cooling System
- This Preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codes P0172, P0299, P0101, P0506, P1101.
- PIP5651B Service bulletin2019-06-20 · Engine And Engine Cooling
- This Preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codes P0172, P0299, P0101, P0506, P1101.
- PIP5710 Service bulletin2020-02-11 · Engine
- This Preliminary information communicates the possiblilty of the charge air cooler tube becoming disconnected from the throttle body and causing reduced power with dtc P0172 P0299 P0101 P0506 P1101
- PIE0569 Service bulletin2020-05-21 · Engine
- This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Loss of Power, Hesitation and/or Stalls, DTCs P0172, P0299, P0101, P0506 and/or P1101 Set.
- PIE0569B Service bulletin2020-07-15 · Engine
- This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Loss of Power, Hesitation and/or Stalls, DTCs P0172, P0299, P0101, P0506 and/or P1101 Set.
- PIP5710A Service bulletin2020-08-27 · Engine And Engine Cooling
- This Preliminary information communicates the possiblilty of the charge air cooler tube becoming disconnected from the throttle body and causing reduced power with dtc P0172 P0299 P0101 P0506 P1101
- PIP5651E Service bulletin2021-06-24 · Power Train
- This Preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codes P0172, P0299, P0101, P0506, P1101.
- PIP5651F Service bulletin2021-08-19 · Structure
- This Preliminary information communicates the possibility of the charge air cooler pipe connection becoming disconnected from the throttle body causing a reduced power issue and one or more of the following trouble codes P0172, P0299, P0101, P0506, P1101.
- 18009 Service bulletin2018-01-23 · Electrical System
- 18009 - Service Update. The bootloader version for the engine control module (ECM) was incorrectly released, and may result in a no-start or stall, and P062B, P0171/P0172, P1133/P2195/P2196 or P300 diagnostic trouble codes to set. Dealers are to inspect for part number and replace the ECM as needed.
- 18-NA-246 Service bulletin2022-03-11 · Engine And Engine Cooling
- This service bulletin provides repair procedures, depending on model year, to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated with DTC P0172, P06DE and/or P0521 Set.
- 22-NA-056 Service bulletin2022-03-11 · Equipment
- This service bulletin provides a repair procedure to correct a customer concern of a MIL Illuminated with DTC P0172, P06DE and/or P0521 Set.
What P0172 means
Source: SAE J2012 / OBD-IIThe engine is running rich on bank 1: too much fuel for the air going in.
A stored code names the test that failed, never the part that caused it. The record above is what Chevrolet and its owners have filed about it; the code’s page across every make has the whole file.
Common questions
Source: NHTSA files and the OBD-II standardIs P0172 a known problem on Chevrolet vehicles?
It is a documented one: NHTSA's files hold 116 manufacturer filings and 0 owner reports naming P0172 on 28 Chevrolet model years (2016–2026). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.
Which Chevrolet models does P0172 appear on most?
2019 Equinox (15 documents), 2019 Malibu (15 documents), 2020 Equinox (10 documents).
Does P0172 on a Chevrolet mean it is recalled?
No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.