VTEC WIRING PROBLEM
Lucky for you I've done so many of these
Alright, first question I'm going to ask you to save my time, and when you reply we'll see. What year is your car? Let me know that and we'll get you straightened out.
Alright, first question I'm going to ask you to save my time, and when you reply we'll see. What year is your car? Let me know that and we'll get you straightened out.
in that case you will not have it all wired from the get go on your chassis (it's very rare) you will have to run the wires straight to the ECU, lemme get the pin out really quick (I know it's around here somewhere...gimmie a sec) and then you take the wires from your VTEC soleniod (it's right next to your distributor) and your VTEC Pressure sensor (they are both on the soleniod) and you run those wires through the firewall to the ECU. Lemme find the pinouts for you.
Courtesy of: http://www.jrcormier.com/prelude/engineswap.php
You need to remove the plastic cover that's on the right side of the floor in front of the door. Then pull the carpet and there'll be some kind of rack you need to remove the nuts (there's 6 I think), then remove the 4 ECU bolts. My car wasn't wired for VTEC so I took an old connector that was similar to the ECU one and broke it and took some pins with a few inches of wire and added the pin to the ECU for pins A4 and D6. Then I passed some wire through the firewall, there's a place for that under the fusebox, and I connected the VTEC solenoid to the A4 pin and the oil pressure switch to pin D6 and the other wire of the oil pressure switch should be wired to the ground on the thermostat housing
BAH, I can't find a good pinout diagram, just do a search and see if you can find it, but this should help you out.
You need to remove the plastic cover that's on the right side of the floor in front of the door. Then pull the carpet and there'll be some kind of rack you need to remove the nuts (there's 6 I think), then remove the 4 ECU bolts. My car wasn't wired for VTEC so I took an old connector that was similar to the ECU one and broke it and took some pins with a few inches of wire and added the pin to the ECU for pins A4 and D6. Then I passed some wire through the firewall, there's a place for that under the fusebox, and I connected the VTEC solenoid to the A4 pin and the oil pressure switch to pin D6 and the other wire of the oil pressure switch should be wired to the ground on the thermostat housing
BAH, I can't find a good pinout diagram, just do a search and see if you can find it, but this should help you out.
well here's about the best I can do for now, courtesy of racerx
P13 Pinouts
Contact Color Description
A1 brn Injector #1
A2 yel Injector #4
A3 red1 Injector #2
A4 grn/yel VTEC Solenoid Valve
A5 blu Injector #3
A6 or/wht HO2S heater coil
A7 grn/blk1 PGM-FI Main Relay coil
A8 grn/blk2 Shorted to A7
A9 blk/blu IAC Valve
A10 - -
A11 red2 EGR Control Solenoid
A12 blu/red Condenser Fan Relay
A13 blu/wht MIL
A14 - -
A15 red/blu A/C Clutch Relay
A16 wht/grn Alternator
A17 pink IAB Solenoid Valve
A18 - -
A19 wht Intake Control Solenoid Valve
A20 red/grn EVAP Purge Control Solenoid
A21 yel/grn1 ICM
A22 yel/grn2 Shorted to A21
A23 blk1 GND
A24 blk2 GND
A25 yel/blk PGM-FI Main Relay (power)
A26 blk/red VTEC Pressure Switch (GND)
B1 yel/blk PGM-FI Main Relay (power)
B2 brn/blk GND
B3 - -
B4 - -
B5 blu/blk To A/C Switch
B6 - -
B7 - -
B8 red/grn PSP Switch
B9 blu/red Starter Cut Relay
B10 orn2 VSS
B11 orn3 CYP
B12 wht CYP
B13 orn/blu TDC
B14 wht/blu TDC
B15 blu/grn CKP
B16 blu/yel CKP
D1 wht/yel Battery
D2 grn/wht1 Brake Switch
D3 red/blu KS
D4 brn/wht SCS
D5 - -
D6 lt blu or lt grn VTEC Pressure Switch
D7 lt grn/red Data Link Connector
D8 - -
D9 wht/red ALT
D10 grn/blk ELD
D11 red/blk TP Sensor
D12 wht/blk EGR Valve Lift Sensor
D13 yel/blu ECT Sensor
D14 wht HO2S Sense
D15 red/yel IAT Sensor
D16 - -
D17 wht/blu MAP Sensor
D18 - -
D19 red/wht EGR Valve Lift Sensor
D20 yel/wht TP Sensor
D21 blu/wht MAP Sensor
D22 grn/wht2 TP Sensor
P13 Pinouts
Contact Color Description
A1 brn Injector #1
A2 yel Injector #4
A3 red1 Injector #2
A4 grn/yel VTEC Solenoid Valve
A5 blu Injector #3
A6 or/wht HO2S heater coil
A7 grn/blk1 PGM-FI Main Relay coil
A8 grn/blk2 Shorted to A7
A9 blk/blu IAC Valve
A10 - -
A11 red2 EGR Control Solenoid
A12 blu/red Condenser Fan Relay
A13 blu/wht MIL
A14 - -
A15 red/blu A/C Clutch Relay
A16 wht/grn Alternator
A17 pink IAB Solenoid Valve
A18 - -
A19 wht Intake Control Solenoid Valve
A20 red/grn EVAP Purge Control Solenoid
A21 yel/grn1 ICM
A22 yel/grn2 Shorted to A21
A23 blk1 GND
A24 blk2 GND
A25 yel/blk PGM-FI Main Relay (power)
A26 blk/red VTEC Pressure Switch (GND)
B1 yel/blk PGM-FI Main Relay (power)
B2 brn/blk GND
B3 - -
B4 - -
B5 blu/blk To A/C Switch
B6 - -
B7 - -
B8 red/grn PSP Switch
B9 blu/red Starter Cut Relay
B10 orn2 VSS
B11 orn3 CYP
B12 wht CYP
B13 orn/blu TDC
B14 wht/blu TDC
B15 blu/grn CKP
B16 blu/yel CKP
D1 wht/yel Battery
D2 grn/wht1 Brake Switch
D3 red/blu KS
D4 brn/wht SCS
D5 - -
D6 lt blu or lt grn VTEC Pressure Switch
D7 lt grn/red Data Link Connector
D8 - -
D9 wht/red ALT
D10 grn/blk ELD
D11 red/blk TP Sensor
D12 wht/blk EGR Valve Lift Sensor
D13 yel/blu ECT Sensor
D14 wht HO2S Sense
D15 red/yel IAT Sensor
D16 - -
D17 wht/blu MAP Sensor
D18 - -
D19 red/wht EGR Valve Lift Sensor
D20 yel/wht TP Sensor
D21 blu/wht MAP Sensor
D22 grn/wht2 TP Sensor
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