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Diagnostic trouble code · Chevrolet

P0191 on Chevrolet vehicles The fuel rail pressure sensor reading does not track the commanded pressure

P0191 is named on 12 Chevrolet model years (2016–2023): 31 manufacturer filings and 1 owner report in NHTSA’s files, across Express, Silverado 2500HD, Cruze, Equinox, Colorado.

Powertrain 12 model years 31 manufacturer filings 1 owner report

Which Chevrolet model years name P0191

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reports
2016 Chevrolet ExpressFuel/Propulsion System5—
2016 Chevrolet Silverado 2500HDFuel/Propulsion System4—
2018 Chevrolet CruzeEngine3—
2018 Chevrolet EquinoxFuel/Propulsion System3—
2017 Chevrolet CruzeFuel/Propulsion System3—
2017 Chevrolet ExpressEngine3—
2016 Chevrolet CruzeFuel/Propulsion System3—
2019 Chevrolet EquinoxEngine2—
2018 Chevrolet ColoradoFuel/Propulsion System2—
2017 Chevrolet ColoradoEngine2—
2023 Chevrolet EquinoxEngine—1
2018 Chevrolet ExpressEngine1—

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.

Fuel/Propulsion System 18 Engine 14
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What Chevrolet owners said

Source: NHTSA complaint database

Owners’ own words, scrubbed of anything identifying. Unverified reports filed with NHTSA — what was said, not a finding that it was true.

The vehicle was taken to a local Auto Zone and a diagnostic machine retrieved DTC: P0191
2023 Chevrolet Equinox at 34,000 miles Jul 20, 2026 NHTSA owner report

Chevrolet filings that name P0191

Source: NHTSA manufacturer communications

Bulletins and campaigns Chevrolet filed with NHTSA whose summary names P0191. Quote the document number at the service desk — it is a diagnosis the maker has already written down.

What P0191 means

Source: SAE J2012 / OBD-II

The fuel rail pressure sensor reading does not track the commanded pressure.

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.

From here

Common questions

Source: NHTSA files and the OBD-II standard

Is P0191 a known problem on Chevrolet vehicles?

It is a documented one: NHTSA's files hold 31 manufacturer filings and 1 owner report naming P0191 on 12 Chevrolet model years (2016–2023). 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 P0191 appear on most?

2016 Express (5 documents), 2016 Silverado 2500HD (4 documents), 2018 Cruze (3 documents).

Does P0191 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.