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Honda Prelude 1993

David Holdeman edited this page Jan 7, 2023 · 3 revisions

1993 Honda Prelude

See also Honda Accord 1995

Connector Face

94 accord ex ecu pinout

26 pin

A1 W63 BRowN Injector #1 Output
A2 W64 YEL Injector #4 Output
A3 W61 RED Injector #2 Output
A4 W62 * * *
A5 W59 BLUe Injector #3 Output
A7 W57 GRN/BLK Fuel Pump Relay Output, sink/low
A8 W58 * * *
A9 W55 BLK/BLU Idle Air Control Valve Output, sink/low. 500Hz
A12 W54 GReeN Radiator Fan Control Module Output
A13 W51 LTGRN/RED MIL Output, low-side
A22 W44 * * *
A23 W41 BLK Power Ground Ground
A24 W42 BLK Power Ground Ground
A25 W39 YEL/BLK Power Source Input, +12 if ignition is on
A26 W40 BRN/BLK Logic Ground Ground

16 pin

B2 W38 BRN/BLK Logic Ground Ground
B10 W30 ORG Vehicle Speed Sensor Input (grounded 4 times per speedometer cable revolution)
B11 W27 ORanGe CYP Signal Input, one pulse per cam rev
B12 W28 WHT CYP Ground
B13 CAM- ORG BLU TDC Signal Input, four pulses per cam revolution
B14 CAM+ WHT BLU TDC Ground
B15 CNK- BLU GRN CKP Signal Input, 24 pulses per cam
B16 CNK+ BLU YEL CKP Ground

22 pin

D3 W19 * * *
D11 W11 RED/BLK Throttle Position Sensor Input
D13 W9 RED/WHT Engine Coolant Temperature Sensor Input
D15 W7 RED YEL Intake Air Temperature Sensor Input (bias pull-up 1.5K)
D16 W8 * * *
D17 W5 WHiTe/YELlow MAP Sensor Input: 0.32V @ -13.9 PSI, 4.84V @ 10.94 PSI
D20 W4 YEL BLU VCC2 TPS, EGVL sensor power supply Output +5V
D21 W1 GRN/WHT SG1 MAP sensor GND Ground
D22 W2 GRN BLU SG2 - Sensors Ground ground

Wiring Diagram

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