Injector Correction Values, Check And Adjust

WARNING: This page is about a different car, the 2012 Volkswagen Touareg and 2011 Volkswagen Touareg. However, it is still accessible from the selected car via links, so may be relevant.

Special Tools And Workshop Equipment Required

Vehicle Diagnostic Tester

The "injector correction value" corrects the fuel injection quantity for each cylinder individually in the Common Rail system over the entire characteristic map.
The 7-digit adaptation values -1- are stamped on each injector (example). The stamped values can be letters and/or numbers (ASCII Code).

Fig 1: 7 Digit Adaptation Values -1- On Injector
Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- When replacing an >>injector<< , the adaptation value for the new injector must be programmed into the engine control.

The Adaptation Procedure is Described in Guide Fault Finding. The Procedures are Also Described in Guided Fault Finding.

Check all the Other Injectors as Well Regarding Their "Injector Correction Value" to Make Sure all Comparison Values Have Been Entered Correctly. If the Correct Comparison Value Have Been Stored in the Engine Control Module, Then These Comparison Value Must Never Be Entered Again.