P2542

Low Pressure Fuel System Sensor Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Unstable engine idling
Increased fuel consumption
Problems starting the engine

Causes

Low fuel pressure sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Problems with the engine control unit
Corroded contacts or damaged wiring

How to Fix

Check the integrity of wiring and connectors
Test low fuel pressure sensor
Check fuel pressure parameters
Replace sensor if necessary
Reset the error code and check the system

Related codes

P2540 P2541 P2543