P2540

Low Pressure Fuel System Sensor Circuit Range/Performance

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
Difficulty 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 low pressure fuel pump
Wiring is dirty or damaged

How to Fix

Check the sensor readings with a scanner
Inspect the sensor circuit for damage
Check the contacts in the sensor connector
Replace sensor if necessary
Check the operation of the low pressure fuel pump

Related codes

P2539 P2541 P0087