What Does P0092 Mean?
The ECM has detected a high voltage or short-to-power condition in the fuel pressure regulator 1 control circuit. The signal on the regulator solenoid circuit is higher than expected, which may cause the regulator to stick in one position or operate uncontrollably. The driver may experience rough running, harsh engine operation, or symptoms of over- or under-fueling depending on the regulator's default position.
Safety Warning
Do not drive if the engine is running poorly. An uncontrolled fuel pressure regulator can cause dangerous over-fueling or under-fueling. Over-fueling risks catalytic converter meltdown, while under-fueling causes misfires and potential stalling in traffic. Have the vehicle towed if severe symptoms are present.
Common Causes
35%
Short to battery voltage in the wiring between the ECM and fuel pressure regulator solenoid
25%
Open circuit in the fuel pressure regulator solenoid coil
20%
Open or corroded ground circuit for the regulator solenoid
12%
Damaged connector with backed-out or bent pins at the regulator
8%
ECM driver circuit stuck high
Diagnostic Steps
1
Disconnect the fuel pressure regulator solenoid and measure coil resistance. An open-loop (OL) reading indicates a failed coil requiring solenoid replacement.
2
With the solenoid unplugged, check for voltage on the ECM control wire. Voltage present when no command is being sent indicates a short to power in the harness.
3
Verify the solenoid ground circuit continuity. An open ground will cause a high-voltage reading on the circuit since current cannot flow through the coil.
4
Inspect the wiring harness for chafing against adjacent power wires, especially in areas near the battery, alternator, or fuse box.
5
Check the connector for backed-out pins or spread terminals. A poor connection can create an effectively open circuit that reads as high voltage on the ECM's monitoring circuitry.
Estimated Repair Cost
$200 - $1,100
Parts + labor, varies by vehicle and location
The ECM has detected a high voltage or short-to-power condition in the fuel pressure regulator 1 control circuit. The signal on the regulator solenoid circuit is higher than expected, which may cause the regulator to stick in one position or operate uncontrollably. The driver may experience rough ru...
The most common cause of P0092 (Fuel Pressure Regulator 1 Control Circuit High) is: Short to battery voltage in the wiring between the ECM and fuel pressure regulator solenoid
Typical repair costs for P0092 range from $200 to $1,100, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Do not drive if the engine is running poorly. An uncontrolled fuel pressure regulator can cause dangerous over-fueling or under-fueling. Over-fueling risks catalytic converter meltdown, while under-fueling causes misfires and potential stalling in traffic. Have the vehicle towed if severe symptoms are present.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0092 to identify the root cause.
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Quick Info
Category
Powertrain
System
Fuel System
Difficulty
Type
Generic (SAE)
Recommended Tools
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