P20DA

DTC P20DA, sometimes indicated as P20DA00 is an OBD diagnostic trouble code indicating a manufacturer-specific fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the air/fuel mixture causing exhaust aftertreatment fuel supply control circuit high.

This code is caused by a problem in the exhaust aftertreatment fuel supply control circuit. There are several possible causes for this, including a faulty sensor, a wiring issue, or a problem with the fuel pump.
To fix this code, you'll need to troubleshoot the exhaust aftertreatment fuel supply control circuit and identify the cause of the problem. Once you've fixed the problem, the code should clear.

• P20DA: Aftertreatment Fuel Supply Control Circuit High
• P20DA: Exhaust Aftertreatment Fuel Supply Control Circuit High
• P20DA: Exhaust after treatment fuel supply – control circuit high
• P20DA 00: Exhaust after treatment fuel supply - control circuit high