What causes P1122 on a Honda?

Binding throttle cable or floor-mat interference holding the plate open Faulty throttle position sensor reading high Vacuum or intake boot leak raising airflow Carbon preventing the throttle plate from closing fully

How do I fix P1122 on a Honda?

Check throttle plate movement and cable free-play with the engine off Read TP sensor voltage sweep on an HDS scan tool from closed to wide open Clean the throttle body and rerun the idle-learn procedure Repair intake leaks or replace a proven-bad TP sensor Clear codes and verify closed-throttle voltage returns to specification

P1122 Throttle Position Higher Than Expected

Q: What does P1122 mean on a Honda?

P1122 — Throttle Position Higher Than Expected. Applies to Civic, Accord, CR-V, Odyssey.

Category: Powertrain - Fuel/Air Metering
Severity: Check Engine Light
Applies to: Civic, Accord, CR-V, Odyssey

What does P1122 mean on a Honda?

P1122 — Throttle Position Higher Than Expected. This Honda-enhanced code applies to Civic, Accord, CR-V, Odyssey.

Common causes of P1122

Binding throttle cable or floor-mat interference holding the plate open
Faulty throttle position sensor reading high
Vacuum or intake boot leak raising airflow
Carbon preventing the throttle plate from closing fully

How to fix P1122

Check throttle plate movement and cable free-play with the engine off
Read TP sensor voltage sweep on an HDS scan tool from closed to wide open
Clean the throttle body and rerun the idle-learn procedure
Repair intake leaks or replace a proven-bad TP sensor
Clear codes and verify closed-throttle voltage returns to specification