P2C04

Fuel Pressure Regulator D Control Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Unstable engine operation
Increased fuel consumption
Difficulty starting the engine
Power Loss
Check Engine Light Is On

Causes

Malfunction of fuel pressure regulator D
Open or short circuit in control circuit
Wiring Harness Problems
Engine control unit (ECU) malfunction
Contact corrosion

How to Fix

Check the integrity of the fuel pressure regulator control circuit D
Check the resistance of the fuel pressure regulator D
Inspect the wiring harness for damage
Check contacts and connectors for corrosion
If necessary, replace fuel pressure regulator D

Related codes

P2C03 P2C05 P2C06