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.
1992 Mercury Capri Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Engine Controls - Tests W/Codes
- Introduction
- Self-Diagnostic System
- Quick Tests
- Pinpoint Tests
- Notes
- How To Use Pinpoint Tests
- Pinpoint Test IDM - Ignition Diagnostic Monitor
- Pinpoint Test Cps - Crankshaft Position Sensor
- Pinpoint Test CID - Cylinder Identification Sensor
- Pinpoint Test Kc - Knock Control
- Pinpoint Test VSS - Vehicle Speed Sensor
- Pinpoint Test VAF - Vane Airflow Meter
- Pinpoint Test ECT - Engine Coolant Temperature Sensor
- Pinpoint Test Vat - Vane Air Temperature Sensor
- Pinpoint Test TP - Throttle Position Sensor
- Pinpoint Test BP - Barometric Pressure Sensor
- Pinpoint Test Ego - Exhaust Gas Oxygen Sensor
- Pinpoint Test PRC - Fuel Pressure Regulator Control Solenoid
- Pinpoint Test CANP - Canister Purge Control Solenoid
- Pinpoint Test ISC - Idle Speed Control
- Pinpoint Test STI - Self-Test Input
- Pinpoint Test STO - Self-Test Output
- Pinpoint Test PGC - Power & Ground Connections
- Pinpoint Test STG - Switch To Ground
- Pinpoint Test STP - Switch To Power
- Pinpoint Test VPWR - Vehicle Power
- Pinpoint Test VREF - Reference Voltage & Signal Return
- Summary
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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