Engine Controls - Revised Chart A-3, No Start: Overview

Number: 92-270-6E

Section: 6E

Date: AUGUST 1992

Corporate Bulletin No.: 216515

ASE No: A1, A8

Subject:
REVISED DRIVEABILITY AND EMISSIONS A-3 DIAGNOSTIC CHART

Model and Year:
1992 CAVALIER, BERETTA AND CORSICA WITH 2.2L ENGINE

SERVICE UPDATE

This bulletin serves to revise Section 6E3 "Driveability and Emissions" in the 1992 "J" and "L' Carline 2.2L (VIN 4 - RPO LN2) Service Manual.

To "Engine Cranks But Won't Run," revise injector parallel test on Chart A-3 on Page 6E3-A-19 "J" and "U' Carline. Changed upper threshold of injector in parallel test from 3.1 to 5.0 ohms. Also added additional logic to check resistance of each injector at 20 degrees Celsius (68 degrees Fahrenheit) if injector parallel test fails. The injector parallel test is designed to check for problems that would cause a no start condition only. Additional checks have been added to "SYMPTOMS" section to test complete injector circuit.

To "SYMPTOMS" section, revise Fuel System Check in "LACK OF POWER, SLUGGISH OR SPONGY" Chart on Page 6E3-B-7 "J" and 6E3-B-8 "U'. Added additional test to check injector resistance. Each injector should be 11.6 to 12.4 ohms at 20 degrees Celsius (68 degrees Fahrenheit).

To "SYMPTOMS" section, revise Fuel System Check in "HESITATION, SAG, STUMBLE" Chart on Page 6E3- B-9 "J" and 6E3-B-l 1 "L'. Added additional test to check injector resistance. Each injector should be 11.6 to 12.4 ohms at 20 degrees Celsius (68 degrees Fahrenheit).

To "SYMPTOMS" section, revise Fuel System Check in "CUTS OUT, MISSES" Chart on Page 6E3-B-l 1 "J" and 6E3-B-13 "U'. Added additional test to check injector resistance. Each injector should be 1 1.6 to 12.4 ohms at 20 Celsius (68 degrees Fahrenheit).