Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B)
Code P0019 means the crankshaft position and Bank 2 "B" camshaft (exhaust cam) signals are out of sync. This is the Bank 2 exhaust cam counterpart to P0017. All four correlation codes (P0016–P0019) share the same root causes; P0019 specifically targets the Bank 2 exhaust cam sensor and the Bank 2 timing chain run. A jumped timing chain, slipped tone ring, or failed sensor are the primary suspects.
What You Might Notice
- Check engine light on
- Hard starting or no-start
- Rough running with power loss
- Timing chain rattle on startup from Bank 2 area
- May be stored with other P001x correlation codes
Most Common Causes
- 1
Jumped or stretched timing chain on Bank 2
A worn Bank 2 chain or one that has jumped a tooth causes the exhaust cam to fall out of phase with the crankshaft.
- 2
Slipped Bank 2 exhaust cam tone ring
A tone ring that has rotated on the cam gear generates an incorrect signal, appearing to the PCM as a correlation mismatch.
- 3
Failed Bank 2 exhaust camshaft position sensor
A faulty cam sensor on the Bank 2 exhaust side creates false correlation faults. Test before assuming a mechanical timing failure.
- 4
Damaged wiring to Bank 2 exhaust CMP sensor
Corroded connectors or broken wires on the Bank 2 exhaust CMP circuit produce signal errors that trigger P0019.
- 5
Collapsed timing chain tensioner (Bank 2)
A failed tensioner allows Bank 2 chain slack, causing intermittent cam/crank phase mismatches.
How to Diagnose It
- 1
Check Jumped or stretched timing chain on Bank 2 — A worn Bank 2 chain or one that has jumped a tooth causes the exhaust cam to fall out of phase with the crankshaft.
- 2
Check Slipped Bank 2 exhaust cam tone ring — A tone ring that has rotated on the cam gear generates an incorrect signal, appearing to the PCM as a correlation mismatch.
- 3
Check Failed Bank 2 exhaust camshaft position sensor — A faulty cam sensor on the Bank 2 exhaust side creates false correlation faults. Test before assuming a mechanical timing failure.
- 4
Check Damaged wiring to Bank 2 exhaust CMP sensor — Corroded connectors or broken wires on the Bank 2 exhaust CMP circuit produce signal errors that trigger P0019.
- 5
Check Collapsed timing chain tensioner (Bank 2) — A failed tensioner allows Bank 2 chain slack, causing intermittent cam/crank phase mismatches.
How to Fix It
- 1
Check Bank 2 exhaust CMP sensor wiring first
Inspect the Bank 2 exhaust cam sensor connector and harness for damage before opening the engine for a timing chain inspection.
- 2
Test the Bank 2 exhaust camshaft position sensor
Scope the Bank 2 exhaust CMP signal. Replace if the signal is weak, intermittent, or showing missing teeth.
- 3
Inspect Bank 2 exhaust cam tone ring
Check the reluctor ring for slippage or damage after removing the cam gear.
- 4
Inspect Bank 2 timing chain, tensioner, and guides
Evaluate chain condition and tensioner operation on the Bank 2 side. Repair any jumped timing before attempting a restart.
- 5
Verify with live cam/crank correlation data
After repairs, confirm Bank 2 exhaust cam and crank signals are in phase using a scan tool.
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