Fuel - Injector Replacement Guidelines

Models: All models
Section: Engine Fuel & Emission Control
Classification: EF&EC92-003
Bulletin No.: NTB92-086
Date: October 13, 1992

FUEL INJECTOR REPLACEMENT

APPLIED MODELS:
All multi point fuel injected engines.

SERVICE INFORMATION:





When fuel injector replacement is required, the following guidelines should be followed:

1. Injector body/harness connector color must always be the same. Injector body colors are beige, blue, brown, green, pink, purple, and red. Therefore red should always be replaced with red and green should always be replaced with green.

2. Paint dot or metal ring color must be the same when replacing one injector out of a set. Paint dot or ring colors are black, blue, gray, green, orange, red, white, and yellow. Therefore a red with blue paint dot should always be replaced with a red with blue paint dot and pink with black paint dot should always be replaced with pink with black paint dot.

3. When replacing a complete set of injectors any paint dot or ring color is acceptable, however the injector body/harness connector color must remain the same.

4. There is no difference between injectors made by different manufacturers.

The following table shows correct injector replacement

CORRECT REPLACEMENT
ORIGINAL INJECTOR REPLACEMENT INJECTOR
connector color/paint dot connector color/paint dot
Red/Blue Red/Blue
Pink/Black Pink/Black

The following table shows incorrect injector replacement

INCORRECT REPLACEMENT

ORIGINAL INJECTOR REPLACEMENT INJECTOR
connector color/paint dot connector color/paint dot
Red/Blue Red/Black
Purple/Black Red/Black
Beige/Blue Brown/Blue





The table shows the injector colors for various models. This is intended as a quick reference guide to verify that the correct injectors are reinstalled. Please refer to the parts catalog for correct part numbers.