P0066

DTC P0066, sometimes indicated as P006600 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing air assisted injector control circuit or circuit low.

The P0066 DTC indicates a problem with the air assisted injector control circuit or circuit low. This could be due to a wiring issue, a faulty injector, or a problem with the air assisted system. If the problem is with the air assisted system, the Check Engine Light will likely come on.

• P0066: Air Assisted Injector Control Circuit or Circuit Low
• P0066: Air Assisted Injector. Control Circuit Low
• P0066: Air assisted injector – circuit malfunction/circuit low
• P0066 00: Air-assisted atomization fuel injector - short to "ground"
• P0066 00: Air assisted injector - circuit malfunction/circuit low