TT Quattro Coupe L4-1.8L Turbo (AWP) (2001)
Engine Control Module: Customer Interest
Fuel System - MIL ON/Multiple Fuel Trim DTC's Set
01 08 13
2009931/3
November 24, 2008.
Supersedes Technical Service Bulletin Group 01 number 05-04 dated June 9, 2005 for reasons listed below.
Affected Vehicles
24 Long Term Fuel Trim - System Too Rich
Condition
From 01-05-04, June 9, 2005
Long Term Fuel Trim - System Too Rich
Technical Background
One of the Diagnostic Trouble Codes (DTCs) shown above is stored in the Engine Control Module. These codes may be accompanied by an Malfunction
Indicator Light (MIL) -K83- illumination.
This condition may be also due to a clogged Suction Jet Pump.
Production Solution
N/A
Service
In addition to other diagnosis for these DTCs (Refer to Repair Manual for a Rich Fuel Trim or Guided Fault Finding) also check if suction jet pump is
clogged as follows: