P2A40

Alternative Fuel System - Injector Leakage to Rail Detected

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–56 (est.)

Symptoms

Unstable engine operation
Increased fuel consumption
Smell of fuel in the cabin or under the hood
Reduced engine power
Check Engine Light Illuminates

Causes

Damage to the alternative fuel injector
Worn injector o-rings
Damage to the fuel line
Fuel pump malfunction
Nozzle contamination

How to Fix

Check the alternative fuel injector for leaks
Replace injector O-rings
Check the integrity of the fuel line
Clean or replace the injector
Check the operation of the fuel pump

Related codes

P2A41 P2A42 P2A43