Obd0 ecu Diagram

[Accord91guy]

Does anyone know were i can find a Obd1 ecu diagram for a dohc engine i cant seem to find one :thumb:

[Midnight_rex]

0bd0 or 0bd1. ur title says 0bd0

[DRKBLUHATCHver2]

http://www.ff-squad.com/tech/wiring/wiring.88-91.jpg



A01 BRN INJ1 fuel injector control # 1
A02 BLK PG1 Ground
A03 RED INJ2 fuel injector control # 2
A04 BLK PG2 Ground
A05 LT BLU INJ3 fuel injector control # 3
A06 GRN purge cut-off solinoid valve
A07 YEL INJ4 fuel injector control # 4
A08 VTS VTEC solenoid
A09
A10 Pressure Regulator Cutoff Soleno
A11 BLU/YEL IACV from electronic air control valv
A12 GRN/BLK FLR1 fuel pump control
A13 YEL/BLK IGP1 power Input
A14 GRN/BLK FLR2 fuel pump control
A15 YEL/BLK IGP2 power Input
A16 BRN/BLK ground
A17
A18 BLK/RED ground
B01 WHT/GRN VBP Battery Backup
B02
B03 YEL ACC a/c compressor clutch relay cont
B04 FANC
B05 WHT/YEL VTM VTEC pressure switch
B06 GRN/ORN MIL check engine warning light
B07
B08 YEL/GRN ACS a/c on input
B09
B10 ORN CYP P crank sensor (1)
B11 Fuse Box
B12 WHT ? CYP M crank sensor (2)
B13 BLU/WHT starting input
B14 BLU ALT alternator output signal
B15 WHT ? ignition output signal
B16 YEL/RED VSS VSS
B17 WHT ? ignition output signal
B18
B19 KS Knock sensor
B20 BRN SCS ignition timing adjusting connec
C01 BLU/GRN CKP P CYL sensor (1)
C02 BLU/YEL CKP M CYL sensor (2)
C03 ORN/BLU TDC P TDC sensor (1)
C04 WHT/BLU TDC M TDC sensor (2)
C05 RED/YEL IAT intake air temperature sensor
C06 RED/WHT ? ECT coolant temperature sensor
C07 RED/BLU TPS throttle angle sensor
C08 O2S Dual O2 Sensor (JDM)
C09 RED/WHT ? PA atomosphere pressure sensor inpu
C10 GRN/WHT ? BKSW brake light switch
C11 GRN/WHT ? MIL ground
C12 GRN/WHT ? SG2 TPS GND
C13 YEL/WHT VCC1 TPS 5V
C14 SG1 MAP GND
C15 YEL/RED VCC2 MAP 5V
C16 WHT O2S oxygen sensor

-DRKBLUHATCHver2

[Midnight_rex]

using the schematics up top hsould help you figure out why your getting the knock sensor, and the 02 sensor codes. maybe the guy u got the CRX from didnt know what he was doing or just made a mistake wiring the engine up. hope that schmatic help you bro.

[Accord91guy]

thanks guys appreciate it