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For 1990-2009 cars only

MANUAL REVISION-A/C,EGR,4TH GEAR ECM CIRCUIT WIRE CODES

1985 FIREBIRD MODELS

Wiring color codes have been revised in subject ECM circuits. The following chart reflects these changes and will assist you in updating your copy of the 1985 Firebird Shop Manual, Section 6E3.

PAGE CIRCUIT NUMBER OLD COLOR NEW COLOR ---- -------------- --------- ---------- 6E3-6 935 Dk Green White White 6E3-6 992 Dk Green Dk Blue 6E3-7 905 Dk Green Yellow Lt Blue 6E3-36 966 Dk Green Yellow Tan 6E3-40 966 Dk Green Yellow Tan 6E3-42 935 Dk Green White White 6E3-184 935 Dk Green White White 6E3-192 905 Dk Green Yellow Lt Blue 6E3-194 905 Dk Green Yellow Lt Blue 6E3-198 992 Dk Geen Dk Blue 6E3-200 992 Dk Green Dk Blue 6E3-202 992 Dk Green Dk Blue

ENGINES AFFECTED:

2.8L RPO LB98 VIN CODE: S 5.0L RPO LB VIN CODE: F

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.