Engine - Spark Knock On Acceleration or Cruise

Article No.
92-26-3

December 16, 1992

SPARK KNOCK - 1.9L SEFI - REMOVAL OF OCTANE ADJUST SHORTING BAR

FORD:
1991-93 ESCORT

LINCOLN-MERCURY:
1991-93 TRACER

ISSUE:
Spark knock may occur on acceleration or during cruise because of ignition timing.

ACTION:
Retard the ignition timing 3-4° BTDC by removing the Octane Adjust Shorting Bar.

During normal diagnosis of the spark knock concern, if you are sent to Section 6A, Pinpoint Test Steps KP8 and KP9 of the Engine/Emissions Diagnosis or Powertrain Control Control/Emissions Diagnosis Manual, removal of the Octane Adjust Shorting Bar is authorized. Removal of the Octane Adjust Shorting Bar will retard the ignition timing 3-4°. This is the only mechanical means for adjusting ignition timing on the EDIS equipped 1.9L SEFI engine.





Obtain an Authorized Modifications Decal and list the date, dealer number, and summary of alterations performed. Select a prominent place adjacent to the Vehicle Emission Control Information Decal suitable for installing the Authorized Modifications Decal. Clean the area, install the decal, and cover it with a clear plastic decal shield.

OTHER APPLICABLE ARTICLES: NONE

WARRANTY STATUS: Eligible Under Bumper To Bumper For 1992-93 Models And Eligible Under Basic Warranty For Other Model Years

OPERATION DESCRIPTION TIME
922603A Remove Octane Shorting 0.4 Hr.
Bar - Includes Road Test

DEALER CODING
BASIC PART NO. CONDITION CODE
DRIVE 07

OASIS CODES:
615000, 615500, 615600