All codes/P214B

P214B

SCR NOx Catalyst Inlet Temperature Too High During Particulate Filter Regeneration

Moderate severity

This code indicates scr nox catalyst inlet temperature too high during particulate filter regeneration. It relates to the throttle actuator / cruise control / fuel trim and may affect performance, emissions, or drivability depending on the exact failure.

SCR NOx Catalyst Inlet Temperature Too High During Particulate Filter Regeneration

Common causes

  • Faulty sensor or actuator

    The component monitored by this code may be worn, failed, or reading out of range.

    medium

    Typical part cost: $100-400

  • Wiring or connector issue

    Corroded, damaged, or loose connections can cause circuit or signal faults.

    medium

    Typical part cost: $100-400

  • See all causes + fix costs

    Create a free Wrenchify account to unlock the rest for P214B.

    Unlock causes

    Free forever · No credit card

First things to check

  1. 1Confirm the code with a scan tool and check for additional related codes.
  2. 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

Get the full step-by-step diagnosis

Create a free Wrenchify account to unlock the rest for P214B.

Unlock diagnosis

Free forever · No credit card

Related codes

See related trouble codes

Create a free Wrenchify account to unlock the rest for P214B.

Unlock related codes

Free forever · No credit card

Frequently asked questions

What does P214B mean?

P214B means "SCR NOx Catalyst Inlet Temperature Too High During Particulate Filter Regeneration". It is a generic OBD-II code that points to a fault in the throttle actuator / cruise control / fuel trim.

Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

Get the full P214B diagnosis for your vehicle

Year, make, model + step-by-step repair help — free plan included.

Diagnose P214B