Fuel System - Diagnostic Chart Update: Overview

91pontiac02

Bulletin Number: 91-6-14A
Reference Number: 016544R
Publish Date: 4/91


Subject: SERVICE MANUAL UPDATE-SECTION 6E2 DRIVEABILITY AND EMISSIONS REVISED FUEL SYSTEM DIAGNOSIS CHART A-7

Models
Affected: 1990-91 2.0L SUNBIRD MODELS (VIN K)


This bulletin has been revised to include different applications, revised electrical diagnostic information, and updated tool numbers. This bulletin supersedes bulletin 91-6-14 issued 11/90. Please discard bulletin 91-6-14.

The Throttle Body Injection (TBI) unit used on these engines contains a constant bleed in the fuel meter assembly which allows fuel pressure to bleed down when the engine is turned "OFF." The new fuel system diagnosis procedures follow on the attached artwork: