⌘K
Federal filingsHome›Trouble codes› P128E
Diagnostic trouble code

P128E

0 owner reports and 44 manufacturer filings across 16 model years from Chevrolet, GMC.

Powertrain Manufacturer-specific 44 manufacturer filings

Where P128E shows up

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reportsParts
2016 Chevrolet ExpressEngine5—
2016 Chevrolet Silverado 2500HDFuel/Propulsion System4—Fuel pump →
2016 GMC SavanaEngine4—
2018 Chevrolet CruzeFuel/Propulsion System3—Fuel pump →
2017 Chevrolet CruzeEngine3—
2016 Chevrolet CruzeFuel/Propulsion System3—Fuel pump →
2018 Chevrolet EquinoxFuel/Propulsion System3—Fuel pump →
2017 Chevrolet ExpressFuel/Propulsion System3—Fuel pump →
2017 GMC SavanaFuel/Propulsion System3—Fuel pump →
2018 GMC TerrainFuel/Propulsion System3—Fuel pump →
2018 Chevrolet ColoradoFuel/Propulsion System2—Fuel pump →
2017 Chevrolet ColoradoFuel/Propulsion System2—Fuel pump →
2018 GMC CanyonEngine2—
2017 GMC CanyonEngine2—
2018 Chevrolet ExpressEngine1—
2018 GMC SavanaEngine1—

A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.

Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.

P128E by make

The same record, one make at a time: the model years, bulletins and owner reports that name P128E on that maker’s vehicles.

Chevrolet 10GMC 6

What it gets filed under

Fuel/Propulsion System 26 Engine 18

44 manufacturer filings name P128E. Start with what the maker wrote down.

A code names the test that failed, not the part. A bulletin that names it is often a diagnosis someone has already written down — quote its number at the service desk.

Photo: Compagnons / Unsplash

Manufacturer filings that name it

Source: NHTSA manufacturer communications

Service bulletins and campaigns whose filed summary names P128E.

What P128E means

Source: SAE J2012 / OBD-II

P128E is a manufacturer-specific code: the second character is a 1, which under the OBD-II standard hands the definition to whoever built the vehicle. The same code can mean one thing on a Ford and something unrelated on a Hyundai. Any site that prints a single definition for it is guessing.

A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.

From here

Common questions about P128E

Source: NHTSA files and the OBD-II standard

Why does this page not define P128E?

Because it cannot be defined honestly. The second character of a trouble code says who owns its meaning, and a 1 or a 3 hands that to the manufacturer. Sites that print one definition for a manufacturer-specific code are showing you one automaker's meaning and hoping it is yours.

Can I keep driving with P128E stored?

Nobody can answer that from the code alone, and a site that does is guessing. A steady light means a fault was logged and the car should be checked soon; a flashing light means a severe misfire — slow down and get it seen as soon as possible, because severe misfire can quickly damage the catalytic converter. The safe read of this page is the mileage and the components, not permission.

Does a code mean the car is recalled?

No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.

Why do the counts here differ from other sites?

Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.

Will clearing the code fix it?

Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.