DTC P0171 (TT 01-15-03)
Publication date: 2015-08-07Reference number: TT 01-15-03
DTC P0171
TECH TIPS
Reference Number(s): TT 01-15-03, Date of Issue:
August 7, 2015
| VOLKSWAGEN: | 2009-2015 Tiguan |
| GROUP: | 01 - On-Board Diagnostic (OBD) |
SERVICE INFORMATION
2009-2015 Tiguan - DTC P0171
When Diagnosing fault code P0171, monitor MVB 32, field 2 (long term fuel trims). If fuel trims read 15-20%, take a fuel sample and check alcohol content using Tech Tip 20-09-01. If it is found necessary to pump out the tank and replace the fuel, note that all Tiguans have saddle style fuel tanks. Both sides of the fuel tank must be pumped out as a result. Removing the rear seat will provide access to both the passenger and driver side.