What are the common causes of P2E69?

Leaking fuel injectors on bank 1. A stuck-open purge valve adding fuel vapor. High fuel pressure from a faulty regulator. A restricted bank 1 air intake path. A failed oxygen sensor reading rich on bank 1.

Read the bank 1 fuel trim on a scan tool. Check fuel pressure against specification. Test the bank 1 injectors for leaks. Inspect the purge valve for a stuck-open condition. Replace the bank 1 oxygen sensor if the signal is skewed. Clear the code and retest.

P2E69

System Too Rich During Cylinder Deactivation Bank 1

System: Powertrain control (P code)
Lamp: Check Engine Light
Category: Powertrain - Hybrid Propulsion

What it means

P2E69 means System Too Rich During Cylinder Deactivation Bank 1.

Check these first

Leaking fuel injectors on bank 1
A stuck-open purge valve adding fuel vapor
High fuel pressure from a faulty regulator
A restricted bank 1 air intake path
A failed oxygen sensor reading rich on bank 1

What to do next

Read the bank 1 fuel trim on a scan tool
Check fuel pressure against specification
Test the bank 1 injectors for leaks
Inspect the purge valve for a stuck-open condition
Replace the bank 1 oxygen sensor if the signal is skewed
Clear the code and retest

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Updated

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