in my case i have to figure out how to wire up my o2 sensor.this may be an easy question. but could someone tell if the white wire from o2 sensor goes to pin d14 and the org/wht wire (heater coil) goes to pin a6. where do the other 2 wires go? im using an obd1 ecu.

thanks and have a nice day

 

Sorry just scanning through here today, does an OBD I ECU use a heated O2 sensor, go over to the Accord section at the FAQ area at the top of the forum and I think that there is a complete listing of all the pins for the ECU, I do not know if the Prelude section has this also at the top of the forum posts.

 

P13 pinout
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

 

http://www.hondaswap.com/forum...50384

 

this is the pin out i have ,but i still only see to wires heater and sensor. auto zone gave me a 4 wire sensor. i checked to make sure it was correct and it was.

so where do the other wires go?