P2A43

Alternative Fuel Tank B Pressure Sensor Circuit Low

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
Increased fuel consumption
Unstable engine idling

Causes

Fuel pressure sensor B malfunction
Open or short circuit in the sensor circuit
Poor connection or corroded connectors
Problems with the engine control unit (ECU)

How to Fix

Check the continuity of the pressure sensor circuit
Inspect connectors and connections for corrosion or damage
Check the functionality of the pressure sensor
If necessary, replace fuel pressure sensor B

Related codes

P2A42 P2A44 P2A45