P0090 on GMC: How to Diagnose & Fix
Fuel Pressure Regulator 1 Control Circuit
1 GMC model · 1 documented issue · 1 critical
P0090 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)
P0090 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 P0090 mean on a GMC?
P0090 stands for "Fuel Pressure Regulator 1 Control Circuit." The PCM detects a general fault in the control circuit for fuel pressure regulator 1 (the electrically controlled regulator/valve that sets rail pressure). On GMC it is documented across 1 model: Terrain.
What are the most common causes of P0090?
The most common causes of P0090 are: Failed fuel pressure regulator/control valve, Open/shorted wiring or connector, Corroded connector, PCM driver fault. The specific cause varies by vehicle.
How much does it cost to fix P0090 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.