Any of you guys have a helms manual? If so, could you scan the page with the ECU Pinouts for the P75 ECU showing what each pin goes to? It would help me a great deal hooking up my wideband o2.

 

please?

 

i searched on here and found this.

http://tech2.hybridgarage.com/..._obd1

should be a help.

what are you trying to do maybe you can get more help.

 

http://www.hondahookup.com/manuals/

Check there... that's where I got mine.

 

nice site, im downloading 3 things right now .

 

Well I found out that the harness's are C408, C409, C410... but I can't seem to find the diagram for the harness's showing which color does what, what page did you find it on?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by IVI &raquo;</TD></TR><TR><TD CLASS="quote">i searched on here and found this.
[url=http://tech2.hybridgarage.com/ecu.php?ecutype=p72_obd1]

should be a help.

what are you trying to do maybe you can get more help.

</TD></TR></TABLE>

I need to find out what each wire is to install my wideband o2 sensor, the site you gave is for a p72, I have a p75 cause I have an LS =/. That manual is great but it doesn't tell what each wire is, it just shows what color the wire is for each pin... doesn't make alot of sense because I can just look at my harness and see what color they are, need to know what each of them does.

 

What year LS? My '95 Helm book only has one set of wiring for LS & GSR. It simply indicates which circuits are 'B18C1 only' or 'auto-tranny only' or whatever. That says the basic pinout is the same, just a couple added wires where the LS has empty spaces.

 

but still that manual only tells what color each wire is for the harness, it doesnt say what each wire DOES.

 

I have a 95 as well

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sykotic &raquo;</TD></TR><TR><TD CLASS="quote">I have a 95 as well</TD></TR></TABLE>

A01 INJ1 (brn) injector 1 (close ground to fire)
A02 INJ4 (yel) injector 4 (close ground to fire)
A03 INJ2 (red) injector 2 (close ground to fire)
A04 VT SOL (grn/yel) VTEC solenoid valve (B18C1 only)
(VTEC solenoid valve is self-grounded)
A05 INJ3 (blu) injector 3 (close ground to fire)
A06 O2SHTC (orn/blk) O2 sensor heater (close ground to turn on)
A07 FLR1 (grn/blu) fuelpump relay (close ground to run)

A09 IACV (blk/blu) idle control valve (close ground)

A12 FANC (grn) radiator & condenser fan relays
A13 MIL (grn/orn) MIL lamp (close ground to light)

A15 ACC (blk/red) A/C clutch relay
A16 ALT C (wht/grn) alternator (control?)
A17 IAB CS (pnk/blu) IAB control solenoid valve (B18C1 only)
(yel/blk) IAB powered from term.2 of main relay

A19 FAS (yel) to TCM (auto trans only)
A20 PCS (red) EVAP purge control solenoid valve
A21 ICM 1 (yel/grn) to ICM

A23 PG1 (blk) power supply ground G101
A24 PG2 (blk) power supply ground G101
A25 IGP1 (yel/blk) 12v power from main relay (2)
A26 LG1 (brn/blk) ground G101


B01 IGP2 (yel/blk) 12v power from main relay (2)
B02 LG2 (brn/blk) ground G101
B03 AFSA (grn/blu) to TCM (auto trans only)
B04 AFSB (gry) to TCM (auto trans only)
B05 ACS (blu/red) A/C switch

B07 ATP PN (lt grn/blk) auto trans (grounded in P or N)
B08 PSP SW (grn) PSP switch (power steering pressure??)
B09 STS (blu/wht) start signal
B10 VSS (orn) signal from VSS
B11 CYP P (orn) (shielded)
B12 CYP M (wht)
B13 TDC P (orn/blu) (shielded)
B14 TDC M (wht/blu)
B15 CKP P (blu/grn) (shielded)
B16 CKP M (blu/yel)


D01 VBU (wht/blu) battery via backup fuse
D02 BKSW (grn/wht) brake switch
D03 KS (red/blu) knock sensor (B18C1 only)
D04 SCS (brn/wht) service check connector

D06 VTP SW (blu/blk) VTEC pressure switch (B18C1 only)
(VTEC pressure switch ground G101 @ T-stat)
D07 TXD/RXD (lt blu) data link connector
D08 BARO OUT (lt grn) to TCM (auto trans only)
D09 ALT F (wht/red) alternator (charging rate signal)
D10 ELD (grn/red) electrical load detector (USA only)
D11 TPS (red/blk) throttle position signal

D13 ECT (red/wht) ECT sensor
D14 O2S (wht/red) signal from O2 sensor
D15 IAT (red/yel) IAT sensor
D16 VREF (wht/blk) to TCM (auto trans only)
D17 MAP PB (wht/yel) MAP sensor signal?

D19 VCC1 (yel/wht) power to MAP sensor?
D20 VCC2 (yel/blu) power to TP sensor?
D21 SG1 (grn/wht) signal ground?
D22 SG2 (grn/blu) signal ground (O2s?)