P1421 Diagnostic Trouble Code Discussion for August 2008
Cold Start Emission Reduction Strategy Monitoring
Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.Trouble Ticket Help Requests for DTC P1421
| Help Request | Posted | |
| 2000 Volkswagen Jetta GLS 2.0L MIL Lamp on VIN: 3VWSC29MXY P1421: secondary air valve circut short to ground. hello friends, this vehcile has 5 fault codes. circuts shorted to ground. vehicle runs pretty normal. starts and idles with no troubles. the catalyst rattles internally. if you clear the ecm the codes reset within a few seconds. i have checked all fuses. was w... |
August 12, 2008 |
