P2A4A

Alternative Fuel Tank C Pressure Sensor Circuit Intermittent/Erratic

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Unstable engine operation
Increased fuel consumption
Check Engine Light Illuminates
Problems starting the engine

Causes

Damage to the wiring to the sensor
Poor contact in the sensor connector
Pressure sensor malfunction
Problems with the engine control unit

How to Fix

Check the integrity of wiring and connectors
Check the functionality of the pressure sensor
Replace sensor if necessary
Check the engine control unit

Related codes

P2A49 P2A4B P2A4C