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P1177 Diagnostic Trouble Code Discussion for May 2008

Electronic Throttle System Motor No. 2 Open or Shorted

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Trouble Ticket Help Requests for DTC P1177
Help Request Posted
2004 Volkswagen Passat GLX 4 Motion 2.8L MIL Lamp on VIN: WVWTH63B64
P1177: B2 o2 sensor correction limit reached behind convertor. Vehicle came in with check engine light on. W/ vag-com retrieved codes as listed. MITCHELL HAS NO INFO, Finding this a lot lately. I have activated secondary blower to confirm operation. All seems well. If anyone can help it would be great. Thanks Nate
May 09, 2008
2003 Volkswagen Passat GLX 4 Motion 2.8L MIL Lamp on, p1176, p1177 VIN: WVWTH63B53
P1177: Lambda correction after cat bank2 limit attained. code 17585. Car came in with p1176 and p1177. Cleared codes and adaptives and let customer drive. Came back with same codes. Monitored O2 operation and O2 sensors seem to work ok. Smoke tested sys. and found small vac. leak at the throttle body inlet and repaired. Also cl...
May 23, 2008