P2A46

Alternative Fuel Tank C Pressure Sensor Circuit

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

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

Causes

Fuel tank pressure sensor malfunction
Open or short circuit in the sensor circuit
Poor contact in the sensor connector
Problems with the engine control unit
Leak in alternative fuel system

How to Fix

Check the integrity of the wiring to the sensor
Check the contacts in the sensor connector
Test the pressure sensor with a multimeter
Replace pressure sensor if necessary
Check the fuel system for leaks

Related codes

P2A45 P2A47 P2A48