Cold Start A Camshaft Position Timing Performance Bank 1

Check these first

• Bank 1 camshaft position sensor reading off on a cold start
• A bank 1 cam sensor contaminated by oil or carbon
• A loose or corroded bank 1 cam sensor connector
• A worn bank 1 cam sensor sensing element
• A timing chain or phaser slow to respond when cold on bank 1

What to do next

1. Read bank 1 camshaft position and timing live data on a cold start
2. Inspect the bank 1 cam sensor connector for corrosion or oil
3. Clean oil or carbon from the bank 1 cam sensor
4. Check for a loose or stretched timing chain on bank 1
5. Replace the bank 1 camshaft position sensor if the reading drifts
6. Clear the code and retest

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