P23F3

Cylinder 2 Injector B Air-Fuel Ratio Imbalance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Unstable engine operation
Increased fuel consumption
Power Loss
Misfires
Check Engine light comes on

Causes

Malfunction of injector B of cylinder 2
Problems with the injector electrical circuit
Nozzle contamination
ECU malfunction
Problems with the fuel system

How to Fix

Check the condition of injector B of cylinder 2
Check the electrical circuit of the injector for opens and shorts
Clean or replace the injector
Check the operation of the fuel system
If necessary, replace the ECU

Related codes

P23F0 P23F1 P23F2