DTC 16555

VAG 1551 Scan Tool Printout:

DTC P0171/16555

Notes:
^ B1 = Bank 1 (right side).

^ The Malfunction Indicator Lamp (MIL) is only switched ON with DTC P0171/16555 after two drives, one after another with a preceding cold start and this recurring malfunction.

^ If DTC P0177/76555 is set, HO2S control has exceeded the learned value for "enrichment"; however, the HO2S still recognizes a "mixture too lean" condition.