P1421 SUBARU - Exhaust Gas Recirculation Circuit High Input
- Faulty EGR valve
- EGR valve harness is open or shorted
- EGR valve circuit poor electrical connection
- Engine Light ON (or Service Engine Soon Warning Light)
P1421 Subaru DescriptionExhaust Gas Recirculation Circuit High Input is the generic description for the P1421 Subaru code, but the manufacturer may have a different description. Currently we have no further information abouth the P1421 Subaru OBDII code. Please post your question on our "Questions" section for more information: AutoCodes.com Questions.
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