My friends doing a b16a1 0bd-0 swap into his 1990 integra LS, and we need some help with the wiring.

I know he is going to need to wire vtec into the new ecu becuase his ls harness obvioulsy doesnt come equiped with it, so what is the wiring diagram into the ecu for vtec. The exhaust also came with 2 o2 sensors, where his LS only has one, is it neccasery for him to use both o2 sensors, or can we just use one and plug off the other sensor?

TIA

 

Anyone have any info?

 

Look around herehttp://www.deepstaged.net/repin.htm

 

PR3/PW0 Pinouts:

A1 - #1 injector
A2 - Power ground 1 for ECU
A3 - #2 injector
A4 - Power Ground 2 for ECU
A5 - #3 injector
A6 - EVAP Purge control solenoid valve (Add if proper emissions is a concern)
A7 - #4 injector
A8 - VTEC Spool VTS(Add unless engine is non-VTEC)
A9 -
A10 - Fuel pressure solenoid vlave (Optional for B16)
A11 - IACV (EACV)
A12 - Fuel pump relay
A13 - IGN power 1 for ECU
A14 - Fuel pump relay
A15 - IGN power 2 for ECU
A16 - Logic Ground 1 for ECU
A17 -
A18 - Logic ground 2 for ECU


B1 - Backup voltage
B2 -
B3 - A/C clutch relay
B4 - Radiator fan control
B5 - VTEC oil pressure (Add if using SiR ECU)
B6 - Malfunction indicator lamp
B8 - A/C switch
B9 -
B10 - CKP P
B11 -
B12 - CKP G
B13 - Starter switch signal
B14 - Alternator signal
B15 - Ignition control module
B16 - VSS (Add if using SiR or B18A ECU*)
B17 - Ignition control module
B18 -
B19 - Knock sensor (Add if using SiR ECU)
B20 - Ignition timing adjusting connector


C1 - CYP P
C2 - CYP G
C3 - TDC P
C4 - TDC G
C5 - IAT
C6 - ECT
C7 - TPS
C8 - Secondary O2 signal (Add if using SiR ECU)
C9 - PA
C10 - Brake switch signal
C11 - MAP
C12 - Sensor ground
C13 - Sensor voltage
C14 - MAP sensor ground
C15 - Map sensor voltage
C16 - Primary O2 signal

 

A8---->VTEC Spool Solenoid Valve
B5---->VTEC Pressure Switch
b19-->Knock Sensor
Original B19 moves to C9
Original C9 gets left disconnected
C8 and C16 can be bridged together