P216E 2016 Chevrolet Silverado Code - Cylinder 6 Injector High Control Circuit Low Voltage

Code P216E indicates a problem with the Cylinder 6 Injector High Control Circuit experiencing low voltage, which could affect the injector’s performance.

Symptoms may include rough idling, misfires, reduced engine performance, poor fuel economy, or the Check Engine Light turning on.

Potential causes include damaged wiring, a faulty fuel injector, a bad injector driver in the ECM, or a poor electrical connection in the injector circuit.

While the vehicle may still be drivable, driving with this code can lead to engine damage or reduced performance. It’s best to address the issue as soon as possible.

Diagnosis involves inspecting the cylinder 6 injector wiring, checking for loose or corroded connections, testing the injector itself, and using a multimeter to measure circuit voltage.

Repairs may include replacing the cylinder 6 fuel injector, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the ECM if it’s faulty.

Common tools include an OBDII scanner, a digital multimeter, and basic hand tools for inspecting wiring and connectors.

A dirty injector typically causes performance issues but is less likely to cause this specific code. The issue is more likely due to electrical or voltage problems.

Clearing the code will only reset the Check Engine Light temporarily. The underlying issue must be repaired to prevent the code from returning.

Repair costs vary but may range from $100 for minor wiring repairs to $500 or more for injector replacement or ECM repairs, depending on the severity of the issue.