Engine Controls - OBD, DTC 19 & 43, Knock Sensor Charts

Bulletin Number: 93-6-2
Reference Number: 216519
Publish Date: 9/92

Subject:
SERVICE MANUAL UPDATE - SECTION 6E3 DRIVEABILITY AND EMISSIONS

Models Affected:
1993 GRAND AM MODELS 2.3L (VIN D, A, AND 3)

This Bulletin updates Section 6E3 of the 1993 Grand Am body with the 2.3L (VIN D, A, AND 3) engine. The updated pages are as follows:





- "On-Board Diagnostic (OBD) System Check"





- DTC 19 Intermittent 7X Reference Circuit





- DTC 43 Knock Sensor (KS) Circuit





- Chart C-5 Knock Sensor (KS) System Check

Please update your 1993 Grand Am Body Service Manual accordingly.