P23F2

Cylinder 1 Injector B Air-Fuel Ratio Imbalance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–167 (est.)

Symptoms

Reduced engine power
Unstable engine idling
Increased fuel consumption
Smell of fuel
Possible misfires

Causes

Fuel injector malfunction
Fuel injector clogged
Problems with injector wiring or connector
Low fuel pressure
Engine control unit (ECU) malfunction

How to Fix

Check the fuel injector wiring and connector for damage.
Check the resistance of the fuel injector.
Clean or replace the fuel injector.
Check the fuel pressure in the fuel rail.
Check the engine control unit (ECU) for errors and reprogram it if necessary.

Related codes

P23F0 P23F1 P23F3 P23F4