ecu wiring diagrams

[LUDELVR]

Is there a website that you can go to that shows the wiring schematics for an ecu? If so, I need one for a p13 I think (the ones from a obd1 h22a).

[1badPT]

See if you can get a scan of a shop manual through your auto club :dunno:

[cocoabrova]

Check on the major Prelude boards/honda-tech

[Keekee]

you could always go to honda and ask them I went to toyota and I copied everything for free

[rio_rex]

Here ya go....

H22A Prelude Si/VTEC 1993-1995
(C415-ECMA)
A1 Fuel Injector#1
A2 Fuel Injector#4
A3 Fuel Injector#2
A4 VTEC solenoid valve control
A5 Fuel Injector#3
A6 HO2s heater control
A7 N/A
A8 Fuel pump control
A9 IAC valve control
A10 N/A
A11 EGR control solenoid valve control
A12 Fan control
A13 MIL Control
A14 N/A
A15 A/C compressor clutch relay control
A16 Alternator output signal
A17 IAB control solenoid valve control
A18 Unknown
A19 Intake control solenoid valve control
A20 EVAP purge control solenoid valve control
A21 Ignition output signal
A22 N/A
A23 Ground
A24 Ground
A25 Power input
A26 Ground
C416ECM-B
B1 Power input
B2 Ground
B3 Unknown
B4 Unknown
B5 A/Con input
B6 N/A
B7 Neutral input
B8 Power steering pressure switch
B9 Starting input
B10 Vehicle speed sensor input
B11 CYP sensor input
B12 CYP sensor ground
B13 TDC sensor input
B14 TDC sensor ground
B15 CKP sensor input
B16 CKP sensor ground
B17 N/A
C417ECM-D
D1 Battery input
D2 Brake switch input
D3 Knock sensor input
D4 Service check connector input
D5 N/A??
D6 VTEC pressure switch input
D7 Data link connector input
D8 Unknown
D9 Alternator FR signal
D10 ELD unit signal
D11 TP sensor input
D12 EGR valve lift sensor input
D13 ECT sensor input
D14 HO2s input
D15 IAT sensor input
D16 N/A
D17 MAP sensor input
D18 +5 Volt reference
D19 Reference voltage
D20 Reference voltage
D21 Sensor ground #1
D22 Sensor ground#2
D23 N/A
D24 N/A
D25 N/A
D26 N/A