2.3L Tip-In Stall Engine At Normal Operating Temp (93-23-9)

Publication date: 1993-11-10
Reference number: 93-23-9

2.3L TIP-IN STALL ENGINE AT NORMAL OPERATING TEMP

TECHNICAL SERVICE BULLETIN

Reference Number(s): 93-23-9, Date of Issue: November 10, 1993

STALLS - 2.3L HSC - TIP-IN STALLS WITH ENGINE AT NORMAL OPERATING TEMPERATURE

APPLICATION

Model(s): FORD: 1988-91 Tempo

LINCOLN-MERCURY: 1988-91 Topaz

Group: Engine

Bulletin No. 93-23-9

Date: November 10, 1993

CALIBRATION:

8-26E-R00, 8-26R-R00, 9-26E-R10,

0-26R-R00, 0-26E-R11, 0-26R-R11

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

ISSUE

Tip-in stalls may occur with the engine operating at normal operating temperature. In some cases, TSB article 93-9-6 does not always correct this condition. These stalls may be caused by the Powertrain Control Module (PCM) calibration.

ACTION

Use the following service procedure to determine if a new PCM with a revised calibration is required.

Perform normal diagnosis to be sure that no fault is present.
Check for Diagnostic Trouble Codes (DTC's) as directed.
If any DTC's are found, service as required before proceeding. Install a new PCM with a revised calibration. Refer to the following PCM Application Chart for correct parts usage.

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. See Fig 1 .

Fig 1: Authorized Modification Decal

PCM APPLICATION

Application	Calibration	Old Processor	New PCM
1988 HSC 49 State/Cal.	8-26E-R00	E8TF-12A650-AZC	F1PZ-12A650-TA
1988 HSC California	8-26E-R00	E8TF-12A650-AZC	F1PZ-12A650-TA
1989 HSC 49 State	8-26E-R00	E8TF-12A650-AZC	F1PZ-12A650-TA
1988 HSC 49 State/Cal.	9-26E-R10	E8TF-12A650-AZC	F1PZ-12A650-TA
1990 HSC 49 State	9-26E-R10	E8TF-12A650-AZC	F1PZ-12A650-TA
1990 HSC California	0-26R-R00	F0TF-12A650-AX	F1PZ-12A650-UA
1991 HSC 49 State	0-26E-R11	F0TF-12A650-BJB	F1PZ-12A650-VA
1991 HSC California	0-26R-R11	F0TF-12A650-XC	F1PZ-12A650-XA
Includes F0TF-12A650-BJB/BJC F0TF-12A650-XC/XD	---	---	---

PARTS INFORMATION

Part Number	Part Name	Class
F1PZ-12A650-TA	Powertrain Control Module	A
F1PZ-12A650-UA	Powertrain Control Module	W
F1PZ-12A650-VA	Powertrain Control Module	A
F1PZ-12A650-XA	Powertrain Control Module	W

2.3L Tip-In Stall Engine At Normal Operating Temp (93-23-9)