Engine - Stalls When Key Is Released to Run Position

90ford03

Article No. 90-3-5

STALL - DURING INITIAL COLD START - EEC PROCESSOR

FORD: 1989 FESTIVA

LINCOLN-MERCURY: 1989 TRACER


This TSB article is being republished in its entirety to include additional EEC processors and an application chart.

ISSUE: An engine that starts and runs with the key in the "crank" position, but stalls when the key is released to the "run" position may be caused by the EEC processor. This condition only occurs during initial cold start in ambient temperatures of 32~F and below (0~C and below). When the processor is warmed up, the stall condition is not present. The affected vehicles are:

^ 1989 Festiva - EFI Only - All EFI calibrations built from 11/1/88 to 1/4/89

^ 1989 Tracer - All calibrations built from 11/1/88 to 1/30/89.

Refer to the build date on the certification label on the driver side front door or "B" pillar to see if the vehicle falls within the suspect build dates.

Figure 1:

ACTION: Install a new EEC Processor. Make sure the new EEC Processor was not built between date codes " 11 H 1 to 12 H 14" (11/1/88 to 12/14/88), Figure 1. Refer to the following EEC Processor Application Chart for correct part usage.

EEC PROCESSOR - APPLICATION CHART

PART NUMBER APPLICATION

E9BZ-12A650-A Festiva EFI 49 State
E9BZ-12A650-C Festiva EFI California
(E9BZ-B Replaced by E9BZ-C)

E9GY-12A650-A Tracer 49 State
E9GY-12A650-B Tracer California
E9GY-12A650-C Tracer California

PART NUMBER PART NAME CLASS

E9BZ-12A650-A EEC Processor B
E9BZ-12A650-C EEC Processor W
E9GY-12A650-A EEC Processor B
E9GY-12A650-B EEC Processor B
E9GY-12A650-C EEC Processor B

OTHER APPLICABLE ARTICLES: None
SUPERSEDES: 89-13-5
WARRANTY STATUS: Eligible Under Basic Warranty Coverage
OPERATION DESCRIPTION TIME
900305A Install EEC IV Processor 1.3 Hrs.
DEALER CODING
BASIC PART NO. CONDITION CODE
DRIVE J7
OASIS CODES: 610200, 610300, 620100