Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
TFI Module/PIP Sensor - New Diagnostic Procedure: Overview
1988 Ford Taurus L4-153 2.5L HSCSECTION Overview
87ford21
EEC IV - TFI MODULE AND PIP SENSOR - Article No.
NEW DIAGNOSTIC PROCEDURE 87-21-10
FORD: 1983-88 ESCORT/EXP, MUSTANG, THUNDERBIRD, FORD 1984-88 TEMPO 1986-88 TAURUS
LINCOLN-MERCURY: 1983 MARK VI
1983-86 CAPRI 1983-87 LYNX 1983-88 COUGAR, MERCURY, CONTINENTAL, LINCOLN TOWN CAR 1984-88 TOPAZ, MARK VII 1986-88 SABLE
MERKUR: 1985-88 XR4Ti 1988 SCORPIO
LIGHT TRUCK: 1983-88 ALL LIGHT TRUCK LINES
ISSUE: A new diagnostic procedure for testing the TFI module and PIP sensor has been developed. This new procedure allows the technician to take a direct path when testing the TFI module and PIP sensor with the use of the new TFI IV diagnostic tester (Rotunda No. 105-00003).
ACTION: If service is required, use the diagnostic procedures on pages 29 through 60 of this TSB. Insert these pages in the Engine/Emission Diagnosis Manual, Volume H, Section 15.
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: "INFORMATION ONLY"
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.