Engine Controls - MAP Chart, DTC's 33, 34 ,63 ,64: Overview

90pontiac12
Bulletin Number: 90-6-27
Reference Number: 016510
Publish Date: 4/90
Subject: MANUAL UPDATE-SECTION 6E1/6E2/6E3 REVISED CHART C-1D, CODE 33, 34,63,64

Models

Affected: ALL 1980-90 PASSENGER CARS (NON-TURBO)
This bulletin revises the Manifold Absolute Pressure (MAP) Output Check Chart C-1D and updates Code 33, Code 34, Code 63, and Code 64 in the Service Manual section on "Driveability And Emissions" (Section 6E1, 6E2, and 6E3). This information applies to all MAP Sensors on 1980-1990 vehicles with gasoline engines (except turbocharged) with green (standard) MAP sensor electrical connector insert or the solid black MAP sensor electrical connector insert.

The revised chart and facing page information is as follows:

- Diagnostic Chart C-lD and facing page.

The updated chart and facing page information is as follows:

- Diagnostic Chart Code 33 and facing page.
- Diagnostic Chart Code 34 and facing page.
- Diagnostic Chart Code 63 and facing page.
- Diagnostic Chart Code 64 and facing page.