P0216: Injection Timing Control Circuit Malfunction

What Does P0216 Mean?

Code P0216 indicates a problem with the injection timing control system. This code is primarily found on diesel engines where precise fuel injection timing is critical for performance and emissions. The ECM has detected that the injection timing is not matching the commanded values, which can cause poor performance and increased emissions.

Common Causes

• Faulty injection pump timing mechanism
• Worn timing gears or chain in the injection pump
• Failed injection timing solenoid
• Wiring fault in the timing control circuit
• ECM calibration issue

Symptoms

• Check engine light on
• Loss of power
• Excessive black smoke from exhaust
• Rough running engine
• Poor fuel economy

Diagnostic Steps

1. 1Read freeze frame data and check actual vs. commanded injection timing
2. 2Test the injection timing solenoid for proper operation
3. 3Inspect the wiring harness to the timing control solenoid
4. 4Check the injection pump timing alignment
5. 5Verify ECM software is up to date and check for TSBs

Estimated Repair Cost

Frequently Asked Questions