P2A7A

Alternative Fuel Hydraulic Pressure Sensor Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–89 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Unstable engine operation
Problems with switching to alternative fuels
Increased fuel consumption

Causes

Alternate fuel pressure sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Problems with the engine control unit
Mechanical damage to the fuel system

How to Fix

Check the integrity of the wiring to the sensor
Check sensor connectors and contacts
Check the functionality of the pressure sensor
Check pressure parameters in the alternative fuel system
If necessary, replace the pressure sensor

Related codes

P2A7B P2A7C P2A7D