P 1218 code???

[sturgeon-phish]

My SES light illuminated and the code was a P 1218 "Fuel air metering". Where do I start to fix the issue? Once the cause is corrected, will the code clear on it's own or do I need to do something to clear the code?
Thanks
Jim

[More Power]

DTC P1218 indicates that the PCM is having difficulty reading the FSD calibration resistor.

Does your FSD have a calibration resistor installed?

Once installed, the PCM will re-learn the resistor value automatically at the next ignition cycle.

MP

[sturgeon-phish]

The FSD and resister are stock and to the best of my knowledge, original.

[sturgeon-phish]

Did a little research and I'm trying to figure what I can do to fix this, or is this somethng I need to ake to a dealer?
Jim

[gmctd]

Try unseating and reconnecting Optical Sensor, and Inj Pump harness (FSD\PMD and Fuel Solenoid) connectors, including FSD\PMD connector, itself.