P01C4

Fuel Pressure Sensor A Circuit Range/Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable engine operation
Increased fuel consumption
Reduced engine power
Difficulty starting the engine

Causes

Fuel pressure sensor A fault
Open or short circuit in wiring harness
Poor contact in sensor connectors
Problems with the fuel supply system
ECU malfunction

How to Fix

Check fuel pressure sensor A for damage.
Check the wiring harness and sensor connectors for breaks and corrosion.
Measure the resistance and voltage of the sensor according to the manufacturer's specifications
If necessary, replace fuel pressure sensor A
Clear error codes and test drive to check

Related codes

P01C5 P01C6 P0190 P0191 P0192