EGR Position Performance
The Engine Control Module has detected a performance issue with the EGR position.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The engine is having trouble with the Exhaust Gas Recirculation (EGR) system's position, meaning it's not able to control exhaust flow properly, which can impact efficiency and emissions.
What the computer is actually seeing
The computer expects the EGR valve to be at certain positions based on the engine's speed and load; if the actual position deviates too much from the expected position, it triggers this code.
What a healthy reading looks like
For a properly functioning EGR system, the valve position should be between 0-100% under operation, depending on load conditions and RPMs. Typical values might be around 10-30% under idle conditions.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 11. Inspect wiring and connectors to the EGR valve for damage or corrosion. Ensure no open or short circuits. Decision: Are wiring and connectors intact?
- 22. Check EGR valve operation by applying direct battery voltage; it should move smoothly and respond quickly without sticking. Decision: Does the valve operate correctly?
- 33. Verify that the EGR passages are clear and not blocked with carbon deposits. Decision: Are the passages clear?
- 44. Check for leaks in the intake or vacuum lines affecting EGR performance. Decision: Are there any leaks?
- 55. If all previous checks out, test or replace the ECM if it fails to send correct signals to the EGR valve.
Common causes
- Faulty EGR valve
- Wiring issue to the EGR valve
- Blocked EGR passages
- Faulty engine control module (ECM)
Typical repair cost
$$
Related codes
Frequently asked questions
Can I still drive my truck with this code?
Yes, but it may affect performance and emissions; fix soon.
Will this code come back after clearing it?
If the underlying issue isn't resolved, yes, it will likely return.
Why do I see this code with others?
Related codes often indicate multiple failures in the EGR system.
Working a real vehicle right now?
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