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ECU Database Revised October 2,  2005 www.plxdevices.com (408)745-7591 1992-1995 Honda Accord, 1992-1995 Honda Prelude ECU Pinout Diagram Connector A Pin # Name Function Signal Type A4 VTEC Solenoid Valve Drives VTEC solenoid valve Analog A21 Ignition Control Module Engine speed Speed A23 Power Ground Chassis ground Ground A24 Power Ground Chassis ground Ground A25 Power Source 12V switched Power Connector B Pin # Name Function Signal Type B1 Power Source 12V switched Power B10 Vehicle Speed Sensor Vehicle speed sensor signal Speed Connector D Pin # Name Function Signal Type D1 Voltage Back Up Permanent 12V Power D2 Brake Switch Brake switch signal Analog D3 Knock Sensor Engine knock sensor Knock,  Audio D6 VTEC Pressure Switch Detects VTEC pressure switch signal Analog D11 Throttle Position Sensor Throttle position sensor signal Analog D13 Engine Coolant Temperature Sensor Engine coolant temperature sensor signal Analog D14 Primary 02 Sensor Primary oxygen sensor signal Analog D15 Intake Air Temperature Sensor Air temperature sensor signal Analog D17 MAP Sensor Manifold absolute pressure sensor signal 0.32V @ -13.9 PSI 4.84V @  10.94 PSI Analog Caution! If you are not familiar with the vehicles electrical systems, onboard sensors,  and vehicle dynamics,  DO NOT attempt to perform ANY installation of PLX Devices Inc. product(s) . PLX Devices Inc.  does not guarantee 100% accuracy,  compatibility and specific application functionality of these documents.  Use these documents as guidelines ONLY and refer to your vehicles service manual for detailed information.
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