High severity
P0004High voltage in the fuel regulator circuit
Part
SCV solenoid
Part price
$113
At a workshop
$163
You save
$50
How to read code P0004
P
System
Powertrain (engine and transmission)
0
Code type
Generic code (SAE / OBD-II)
0
Subsystem
General system / auxiliary measurement
04
Fault number
Specific fault within the subsystem
Symptoms
- Engine stalls during driving
- Unable to start the car
- Diagnostic trouble code stored
Possible causes
- Short to positive on the electrical harness
- Internal damage to the regulator
- Engine control module issue
Diagnostic steps
- 1Inspect harness for wear and shorts
- 2Check voltage at the regulator connector after ignition
- 3Replace the regulator as a test
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Frequently asked questions about P0004
What does code P0004 mean?
P0004: High voltage in the fuel regulator circuit.
What are the symptoms of code P0004?
Engine stalls during driving; Unable to start the car; Diagnostic trouble code stored.
What causes code P0004?
Short to positive on the electrical harness; Internal damage to the regulator; Engine control module issue.
Can I drive with code P0004?
DO NOT DRIVE – Risk of serious damage to components. Towing or repair on the spot is recommended.
How much does it cost to fix code P0004?
The part (SCV solenoid) costs about $113, and a mechanic’s labour about $50.
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