P228D on GMC: How to Diagnose & Fix
Fuel Pressure Regulator 1 Exceeded Control Limits - Pressure Too High
1 GMC model · 1 documented issue · 1 critical
P228D on GMC by model: symptoms, diagnosis and fix
On 1.5L turbo Terrains, the in-tank fuel pump module may not consistently supply enough fuel because a tier-two supplier made an unauthorized production change that reduced pump clearances, starving the engine of fuel and causing sudden stalling and loss of power while driving - a crash risk. GM recall N222372310 (NHTSA 23V-013) covers 2022 Terrains built June 22, 2021 to February 1, 2022 (and 2021-2022 Equinox).
Common Symptoms
- Sudden engine stall while driving
- Loss of power/propulsion
- Hard starting or no-start
- Check engine light
- Rough running
How to Fix
Under recall, dealers replace the fuel pump module free of charge. Owners should verify their VIN against open recalls via NHTSA or a GMC dealer.
Call to confirm they can assess your vehicle and perform the stated work. Search results do not confirm qualification, eligibility or coverage.
Sources for this issue (2)
P228D code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P228D mean on a GMC?
P228D stands for "Fuel Pressure Regulator 1 Exceeded Control Limits - Pressure Too High." This powertrain code means the engine computer detected that fuel pressure controlled by fuel pressure regulator 1 went higher than the desired/commanded level, beyond acceptable control limits. The system continuously adjusts the regulator to hold target fuel rail pressure; when actual pressure stays too high, this code sets. Excessive fuel pressure can cause a rich mixture, rough running, hard starting, and over time can stress injectors and the catalytic converter. It should be diagnosed promptly to avoid drivability and emissions problems. On GMC it is documented across 1 model: Terrain.
What are the most common causes of P228D?
The most common causes of P228D are: Faulty fuel pressure regulator (sticking closed/restricted), Faulty fuel rail pressure sensor, Restricted fuel return line or path, Wiring or connector fault on the regulator circuit, Mechanical high-pressure fuel pump fault, Faulty engine control module (less common). The specific cause varies by vehicle.
How much does it cost to fix P228D on a GMC?
Repair costs vary widely with the root cause and GMC model; each issue on this page carries its own estimate where one is published.
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Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.