The P216F: Fuel Injector Group ‘F’ Supply Voltage Circuit High refers to an issue where the voltage supplied to fuel injector group ‘F’ is higher than expected. This could be caused by excessive voltage in the circuit, faulty fuel injectors, or wiring and power supply issues.
P216F – Quick Overview
Code | Information |
---|---|
Meaning | P216F: Fuel Injector Group ‘F’ Supply Voltage Circuit High |
Is it serious? | Yes, it can lead to improper fuel injection, engine misfires, and potential damage to components. |
Possible causes | – High voltage in the fuel injector group ‘F’ supply circuit – Faulty fuel injector group ‘F’ – Wiring or power supply issues |
How to diagnose? | – Measure voltage in the fuel injector group ‘F’ supply circuit – Test the fuel injector group ‘F’ – Inspect wiring and connections for faults |
P216F Meaning
The P216F: Fuel Injector Group ‘F’ Supply Voltage Circuit High code indicates that the engine control module (ECM) has detected a high voltage in the supply circuit for fuel injector group ‘F’. High voltage can result in improper fuel delivery, which can cause engine performance issues like misfires, rough idling, and even damage to the fuel injectors or associated components.
Step-by-step diagnostic guide
Action | Description | Tools Needed |
---|---|---|
Check for Other Codes | Use an OBD-II scanner to check for any related codes that might provide further insight into the issue. | OBD-II Scanner |
Measure Voltage in Supply Circuit | Use a multimeter to measure the voltage in the fuel injector group ‘F’ supply circuit. Ensure the voltage is within manufacturer specifications and not too high. | Multimeter, Vehicle Manual |
Test Fuel Injector Group ‘F’ | Use a diagnostic tool to test the functionality of the fuel injectors in group ‘F’. Ensure they are operating correctly and not being affected by high voltage. | Multimeter, Diagnostic Tool |
Inspect Wiring and Connections | Visually inspect the wiring and connections leading to fuel injector group ‘F’ for signs of damage, corrosion, or loose connections that could cause high voltage. | Flashlight, Safety Gloves |
Check Power Supply | Check the power supply to the fuel injector group ‘F’. Inspect the voltage regulator and other components to ensure they are not causing excessive voltage. | Multimeter, Wiring Diagram |
Repair or Replace Faulty Components | Repair or replace any faulty wiring, connectors, or fuel injectors as necessary to resolve the high voltage issue. | Replacement Parts, Tools |
Clear the Code and Test Drive | After completing repairs, clear the P216F code using an OBD-II scanner and take the vehicle for a test drive to verify the issue is resolved. | OBD-II Scanner |
Recheck for Codes | After the test drive, re-scan the vehicle to ensure that the P216F code does not return. | OBD-II Scanner |

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