What does code P1216 mean?

Q: What does code P1216 mean?

Fuel Solenoid Response Time Too Short. P1216 on a GM vehicle means the powertrain control module (PCM) commanded the fuel solenoid and measured a response that was faster than the expected window, indicating the solenoid or its circuit is reacting too quickly. The PCM monitors the solenoid's electrical response time against a calibrated range and sets this code when the measured time falls below the minimum threshold.

DTC codes / GM codes / P1216

P1216 · GMFuel Solenoid Response Time Too Short

P1216 on a GM vehicle means the powertrain control module (PCM) commanded the fuel solenoid and measured a response that was faster than the expected window, indicating the solenoid or its circuit is reacting too quickly. The PCM monitors the solenoid's electrical response time against a calibrated range and sets this code when the measured time falls below the minimum threshold.

SystemPowertrain

Code typeGM specific

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

Guidance is general and written for GM vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.