P1398 – Dodge DTC

Dodge DTC P1398 – Mis-Fire Adapter Numerator at Limit

DTC P1398 meaning on Dodge

1. DTC P1398 refers to “Mis-Fire Adapter Numerator at Limit” on Dodge vehicles.

Dodge DTC P1398 symptoms

• Check Engine Light (CEL) may illuminate on the dashboard.
• Engine may run rough or misfire.
• Reduced engine performance.

Dodge DTC P1398 causes

• Ignition system issues such as faulty spark plugs or ignition coils.
• Fuel system problems like clogged fuel injectors or low fuel pressure.
• Vacuum leaks in the intake system.

Dodge DTC P1398 seriousness

1. While the vehicle may still be operable with DTC P1398, it can lead to decreased fuel efficiency and potential engine damage if left unresolved.

How to diagnose DTC P1398 on Dodge

1. Use an OBD-II scanner to retrieve the specific fault code.
2. Inspect the ignition system components for wear or damage.
3. Check the fuel system for any issues affecting fuel delivery.
4. Inspect the intake system for vacuum leaks.

How to fix DTC P1398 on Dodge

1. Replace faulty spark plugs or ignition coils if necessary.
2. Clean or replace clogged fuel injectors.
3. Address any vacuum leaks in the intake system.
4. Perform a thorough inspection and repair of the affected components.

How to erase DTC P1398 on Dodge

1. After fixing the underlying issue, use an OBD-II scanner to clear the fault code.
2. Drive the vehicle to allow the system to retest and ensure the code does not return.