What are the common causes of P2192?

A faulty oxygen sensor. A mass airflow sensor fault. An intake manifold or vacuum leak. A leaking or dirty fuel injector on bank 1. A failed fuel pressure regulator.

Read the fuel trims on bank 1 on a scan tool under load. Check the oxygen sensor signal. Clean the mass airflow sensor. Test the fuel pressure and the injectors. Replace the fuel pressure regulator if it will not hold pressure. Clear the code and retest.

P2192

System Too Rich at Higher Load Bank 1

System: Fuel and air metering (P code)
Lamp: Check Engine Light
Category: Powertrain - Fuel/Air Metering

What it means

P2192 means System Too Rich at Higher Load Bank 1.

Check these first

A faulty oxygen sensor
A mass airflow sensor fault
An intake manifold or vacuum leak
A leaking or dirty fuel injector on bank 1
A failed fuel pressure regulator

What to do next

Read the fuel trims on bank 1 on a scan tool under load
Check the oxygen sensor signal
Clean the mass airflow sensor
Test the fuel pressure and the injectors
Replace the fuel pressure regulator if it will not hold pressure
Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.