P01A2

Alternative Fuel Tank A Pressure Sensor Circuit Intermittent/Erratic

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Unstable engine operation
Power reduction
Increased fuel consumption
Check Engine Light Illuminates

Causes

Open or short circuit in wiring harness
Poor contact in the sensor connector
Pressure sensor malfunction
Problems with the engine control unit

How to Fix

Check wiring harness for damage
Check the contacts in the sensor connector
Check sensor resistance and voltage
If necessary, replace the pressure sensor

Related codes

P01A1 P01A3 P0172 P0175