Crankshaft Position - Exhaust Camshaft Position Correlation
There's a timing issue between the crankshaft and the exhaust camshaft.
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 computer checks the position of the crankshaft and the exhaust camshaft. If they are not in sync when they should be, this code pops up, indicating a possible timing problem or sensor failure.
What the computer is actually seeing
The engine control module (ECM) expects the crankshaft and exhaust camshaft positions to be in a certain correlation based on the engine RPM and load. For example, if the crankshaft is at 90 degrees and the exhaust camshaft is at 140 degrees when it should be closer to 90 degrees, a fault is triggered.
What a healthy reading looks like
Crankshaft position: 0-360 degrees; Exhaust camshaft position: relative to crankshaft position, ideally within a few degrees of expected correlation.
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. Visually inspect the wiring and connectors for the camshaft timing sensors for any damage or corrosion. If faulty, repair or replace as necessary.
- 22. Check engine oil level and condition. Low oil or dirty oil can cause VVT to malfunction. If oil is low, top off or change it if dirty.
- 33. Using a scan tool, monitor real-time data of the camshaft and crankshaft positions while the engine is running. Look for discrepancies beyond expected correlation values during various RPMs.
- 44. If discrepancies are found, check for a mechanical issue: remove the timing cover and inspect the timing chain/belt for wear or misalignment. Replace any damaged components as needed.
- 55. If all mechanical components check out, replace the faulty camshaft timing sensor and clear the code.
Common causes
- Faulty camshaft timing sensor
- Broken timing chain or belt
- Incorrectly installed timing components
- Oil flow issues affecting VVT operation
- Wiring issues or damaged connectors
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's best to fix this soon as it can lead to engine performance issues or further damage.
Will this code come back after clearing it?
It may return if the underlying issue is not fixed, such as a faulty sensor or mechanical problem.
Why does this code pair with P0016 or P0019?
Those codes also relate to camshaft and crankshaft correlation alignments, indicating similar timing issues.
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