Fuel System - Unnecessary Fuel Injector Replacement
Group: 24Number: 05-01
Date: Feb. 15, 2005
Subject:
Fuel Injectors, Unnecessary Replacement
Model(s):
See Table Below 2002 --> 2005
Condition
Repair Manual or Guided Fault Finding (GFF) process leads you to the replacement of a fuel injector.
Service
Prior to replacing a fuel injector, check the wiring pin connectors as described in the following work procedure:
- Locate affected cylinder.
- Swap ignition coil, spark plug or fuel injector from affected cylinder to another cylinder and observe if problem moves with the swapped component.
If problem moves with swapped component:
- Replace that faulty component.
If problem remains at the same cylinder:
- Check electrical connectors of fuel injectors as follows:
- Disconnect connector of fuel injector(s).
- Remove contact pins from the plug housing:
- Push plug out of housing by releasing locking tabs -A-.
- Remove secondary lock -B- upwards
Note:
Use appropriate tool from the VAS 1978 Wiring Repair kit.
- Push tool into slot -C- and remove female terminals from connector.
With terminals removed from connector:
- Push terminals (trial fit without housing) successively onto the appropriate male terminals of the injector.
^ Female terminals should fit snuggly.
If the female terminals slide without resistance onto the appropriate injector:
- Replace affected female terminals using wire Part No: 000979021 from the VAS 1978 wiring repair kit.
Tip:
When repairing wiring, always follow instructions included in the VAS 1978 Wiring Repair kit.
If the contact pins fit snuggly to the pins
- The affected component needs to be checked using the VAS 5051 or VAS 5052 diagnostic tool and Guided fault finding.
When procedure applies to vehicles within the New Vehicle Limited Warranty, use the as shown.