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Wiring Info

Each of the 4 ECU's uses different wiring looms.

The following diagram is for the PR3/PWO ECU connections (the one I'm using)

'A' connector (white)

Not connected	A15 Yel/Blk +12v Switched IGP1	A13 Yel/Blk +12v Switched IGP1	A11 Blu/Yel Air control value EACV (IAC)	SPACE	A7 Yel Injector 4	A5 Lt Blu Injector 3	A3 Red Injector 2	A1 Bro Injector 1
A18 Blk/Red GND LG1	A16 Bro/Blk GND LG1	A14 Grn/Blk Fuel pump FLR	A12 Grn/Blk Fuel pump FLR	A10 Grn Purge valve PCS	A8 Grn/Wht VTEC spool VTS	A6 Blu unknown	A4 Blk GND PG1	A2 Blk GND PG1

'B' connector (black)

B19 Wht Knock sensor	B17 Wht Ignitor ICM	B15 Wht Ignitor ICM	B13 Blu/Wht +12v At start STS	B11 Blk/Grn Rear demister	Not connected	Not connected	B5 Blu/Blk VTEC pressure VTP	B3 Yel A/C clutch ACC	B1 Wht/Grn +12v Always VBU
B20 Bro Adjust timing	Not connected	B16 Yel/Red Speed sensor VSS	B14 Blu Alternator ALTC	B12 Wht Dist crank-	B10 Orge Dist crank+	B8 Blu/Red A/C switch ACS	B6 Grn/Orge Check light MIL	Not connected	Not connected

'C' connector (black)

C15 Yel/Red MAP+ VCC1	C13 Yel/Wht TPS+ VCC2	C11 Wht MAP	Not connected	C7 Red/Blu TPS	C5 Red/Yel Air temp	C3 Orge/Blu Dist TDC+	C1 Blu/Grn Dist CYL+
C16 Wht Oxygen sensor 1	C14 Grn/Wht MAP- SG1	C12 Grn/Wht Sensor GND SG2	C10 Grn/Wht Brake light	C8 Red/Blu Oxygen sensor 2	C6 Red/Wht Water temp	C4 Wht/Blu DIST TDC-	C2 Blu/Yel Blu/Yel DIST CYL-