Hard Cold Start/Surge/Miss/Backfire - New Processor (85-10-13)

Publication date: 1985-05-17
Reference number: 85-10-13

HARD COLD START/SURGE/MISS/BACKFIRE - NEW PROCESSOR

TECHNICAL SERVICE BULLETIN

Reference Number(s): 85-10-13, Date of Issue: May 17, 1985

HARD START - COLD - ENGINE SURGE/HESITATION AND/OR BACKFIRE ON TIP-IN DURING THE FIRST 2 TO 3 MINUTES OF OPERATION

Model(s): FORD: 1983 ESCORT, EXP

LINCOLN-MERCURY: 1983 LYNX, LN7

Group: Engine

Bulletin No.: 85-10-13

Date: May 17, 1985

Symptom: Hard Start

Calibrations: 3-03A-R01 -R12 -R13

SERVICE INFORMATION

WARNING: This modification is authorized only for the listed engines. Performing this modification on other engine calibrations is unauthorized and could create liability under applicable federal or local laws.

WARNING:

Poor cold start, engine surge/hesitation, or backfire on tip-in during the initial 2 to 3 minutes of engine operation after an overnight soak in ambients over 55°F, may be caused by an excessively lean fuel/air ratio. This concern can be serviced by installing a 1984 processor. Since a 1984 processor wiring connector is different than the 1983 connector, a revised wiring harness (12A581) adaptor is required in addition to other associated EEC system components.

Obtain an Authorized Modifications decal and list the date, dealer number and summary of alterations performed. See Fig 1 . 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.

PARTS INFORMATION

PART NUMBER	PART NAME	CLASS
E3PZ-12A650-A	1.6L EFI Cold Drive Kit (Procedure Included In Kit)	CG

Fig 1: Authorized Modification Decal