P0216
Injection Timing Control Circuit Malfunction
Encountering the engine check light code P0216 signifies an explicit mechanical or electrical operational breakdown categorized as "Injection Timing Control Circuit Malfunction". Professional scanner tools usually flag this subsystem loop early on.
Driver's Summary
The diagnostic trouble code P0216 indicates an active fault in the injection timing control circuit malfunction circuit or component. You may notice diesel engine knocking loudly, white smoke, loss of power, stalling, all of which are direct consequences of this malfunction. This is a serious fault — avoid extended driving and have your vehicle inspected by a mechanic as soon as possible to prevent further damage.
Symptoms
Diesel engine knocking loudly, white smoke, loss of power, stalling
Common Causes
- Failed injection pump timing solenoid
- Clogged fuel filter causing low pressure
- Air in the fuel lines
- Internal injection pump failure
How to Fix
- 1 Replace timing solenoid
- 2 Replace fuel filter and bleed system
- 3 Fix air leaks in fuel lines
- 4 Rebuild or replace injection pump
Technical Explanation
To set P0216, the PCM samples the affected circuit multiple times per second, comparing live readings against manufacturer-programmed operating windows. Misfire rate is counted per cylinder over rolling windows and compared against two thresholds: a catalyst-damaging rate (triggers flashing MIL) and an emissions-exceeding rate (triggers solid MIL). The PCM logs which cylinder is misfiring based on crankshaft position at the time of each detected event. After two failed drive cycles, the code transitions from a pending to a confirmed DTC, and the PCM activates the MIL. Clearing the code without repairing the fault will result in re-illumination within one to two complete drive cycles.
Is It Safe to Drive?
With P0216 active, your engine or transmission is not operating within design parameters. Short-term driving may seem fine, but internal damage is accumulating — particularly to failed injection pump timing solenoid.
Mechanic's Pro Tip
With P0216, always change the engine oil with the correct factory viscosity as the absolute first step before any electrical testing — dirty or wrong-viscosity oil prevents VVT actuators from responding properly regardless of solenoid condition. After the oil change, warm the engine fully and monitor camshaft advance angle live on a scan tool; if it still won't advance to the commanded target, then test the VVT solenoid. Cleaning the solenoid's internal filter screen (often packed with sludge) resolves a large percentage of these codes without replacing the solenoid.
Related Fault Codes
Frequently Asked Questions
What does OBD2 code P0216 mean?
OBD2 code P0216 refers to Injection Timing Control Circuit Malfunction. Encountering the engine check light code P0216 signifies an explicit mechanical or electrical operational breakdown categorized as "Injection Timing Control Circuit Malfunction". Professional scanner tools usually flag this subsystem loop early on.
What are the most common symptoms of DTC P0216?
Drivers experiencing code P0216 typically report: Diesel engine knocking loudly, white smoke, loss of power, stalling.
Is it safe to drive with trouble code P0216 active?
With P0216 active, your engine or transmission is not operating within design parameters. Short-term driving may seem fine, but internal damage is accumulating — particularly to failed injection pump timing solenoid.
How much does it cost to fix code P0216?
The estimated repair cost for P0216 ranges from $150 to $2500 USD. Timing solenoid: $200 - $500; Injection pump: $1,000 - $2,500
Timing solenoid: $200 - $500; Injection pump: $1,000 - $2,500
Need Professional Diagnostic Assistance?
Always verify sensor signals and wiring integrity with an OBD2 scanner before purchasing replacement parts.
Explore All Powertrain Codes →