P0016

Crankshaft Position-Camshaft Position Correlation (Bank 1 Sensor A)

Q: What are the possible causes of P0016?

Timing chain jumped or stretched; Camshaft position sensor misaligned; Crankshaft position sensor tone wheel damaged; Timing chain tensioner failure; ECM calibration error.

Severity: High Fuel & Air Metering Generic Code

Detailed Description

The ECM has detected that the phase relationship between the crankshaft position sensor and Bank 1 camshaft position sensor is outside the allowable range, indicating a timing system issue.

Possible Causes

Timing chain jumped or stretched

Camshaft position sensor misaligned

Crankshaft position sensor tone wheel damaged

Timing chain tensioner failure

ECM calibration error.

Solutions & Repair Guide

This is a serious timing fault — recommend immediate inspection. Check timing chain and tensioner condition; Confirm all timing marks are correctly aligned; Inspect sensor mounting and tone wheel condition; Clear the code and road test after eliminating mechanical faults.

Disclaimer: The information above is for reference only and does not constitute professional repair advice. Actual causes may vary depending on vehicle make, model, year, and configuration. Always consult a qualified technician for accurate diagnosis.