P23DC

Cylinder 3 Fuel Heater Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–56 (est.)

Symptoms

Difficulty starting the engine in cold weather
Unstable engine idling
Reduced engine power
Increased fuel consumption

Causes

Cylinder 3 fuel heater malfunction
Open or short circuit in the heater circuit
Relay or fuse problems
Control module malfunction

How to Fix

Check the integrity of the cylinder 3 fuel heater
Check the electrical circuit for breaks or short circuits
Check relays and fuses
If necessary, replace the fuel heater

Related codes

P23DD P23DE P23DF