Engine Controls - Incorrect VSS Diagram

9216chevy01

Number: 88-443-6E

Section: 6E

Date: October 1990

Corporate Bulletin No.: 016535


Subject: DRIVEABILITY AND EMISSIONS - ECM MECHANIZATION


Model and Year: 1984-88 CAPRICE, CAMARO AND MONTE CARLO WITH 5.0L AND 5.7L ENGINES


TO: ALL CHEVROLET DEALERS

This bulletin applies to 1984-1988 5.0L (VIN H/G) and 5.7L (VIN 6) "B," "F," and "G" Carline Service Manuals. In DRIVEABILITY AND EMISSIONS (SECTION 6E1) the ECM Wiring Diagrams may illustrate that the 439 (ignition feed) circuit is spliced to circuit 437 (vehicle speed sensor).

Ignition voltage is not supplied to, nor is circuit 439 spliced to the vehicle speed sensor circuit (437).