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Engine Controls - Updated TPS Voltage Range


9226buick04

Bulletin: 89-6E-30

Date: June '90

Ref. No.: 89-288-6E

Corp. Ref. No.: 016513


SUBJECT:
SERVICE MANUAL UPDATE - SECTION 6E2 - DRIVEABILITY AND EMISSIONS

MODELS AFFECTED:
1987, 1988, AND 1989 SKYHAWK MODELS WITH 2.0L ENGINE
(VIN CODE 1)


This bulletin serves to update the acceptable TPS Voltage Range currently being used in Section 6E2 "Driveability and Emissions" of the 1987-1989 2.0L (VIN 1) Skyhawk Service Manuals. Presently, the specification is .45V to 1.25V.

The new specification has now been revised to .33V to 1.33V. A TPS whose voltage falls outside this new specification at closed throttle should, after checking connections, be replaced.