Ok basically running bare minimum on a hondata s300 and this is what i got so far...correct me if im wrong and i need to know what wires on the ecu i need to hook to a constant,switch power source and or ground. Any input is greatly appreciated ahead of time.

Running bare minimun... injectors,map,tps,engine temp, coolant temp, speed, iat, distributor, if u see anything else i need lmk

A01- INJ1
A02- INJ4
A03- INJ2
A04- EMPTY
A05- INJ3
A06-A20 EMPTY
A21- Ignition Input Signal "also tied to A22"
A22- Ignition Input Signal "also tied to A21"
A23- Power Groung "Does this just hook to a ground??"
A24- Same as A23
A25- Power source "is this a switched power or does it power the injectors??"
A26- Logic ground "just groung it?"

B01- Voltage back-up "ties to A26??"
B02- Ground??
B03- EMPTY
B04- EMPTY
B05- EMPTY
B06- EMPTY
B07- Clutch Switch "does this need to be grounded or can i leave it empty?"
B08- EMPTY
B09- EMPTY
B10- speed sensor
B11- ORG DIZZY "Crank sensor"
B12- WHITE DIZZY "Crank Sensor"
B13- ORG-BLU DIZZY "Cyl sensor"
B14- WHT-BLU DIZZY "Cyl sensor"
B15- BLU-GREEN DIZZY "Crank sensor"
B16- BLU-YEL DIZZY "Crank sensor"

D01- Switched Power??
D02- Empty
D03- Knock Sensor
D04- EMPTY
D05- EMPTY
D06- EMPTY
D07- EMPTY
D08- EMPTY
D09- EMPTY
D10- EMPTY
D11- MAP
D12- EMPTY
D13- COOLANT TEMP
D14- EMPTY
D15- IAT
D16- EMPTY
D17- MAP
D18- EMPTY
D19- MAP +
D20- TPS
D21- MAP GROUNG
D22- IAT GROUND

 

Not running any guages just a tac, oil press, coolant temp, wideband and doing something like a arc 8000 switch panel and relay setup to cutt on lights fans fuel etc

 

pm joel@strd he may be able to help you i have a list in my paper work from when he helped me ill digg them out tonight..

 

Seems like whatever you're referencing for the pinout is wrong.

Send me an email, I'll get you a correct pinout to go off of, and a guide we include with our DIY Race-Spec kits.

 

Get a obd2a or b harness and it will have everything in the plugs that go right to ecu. We used a obd2 in crx and only had to add power and ground wires to send power to ecu and it worked perfect.
What car you putting it in?

 

Its an eg but shouldn't matter what car ... I'm only running a few sensors and a few switches inside the car. I don't need an entire harness, I'm trying to get rid of all the extra wiring that I don't need that are in the stock harnesses. I have a stock b series harness that I plan on using and just taking ALL the non used wires and plugs out. I really just need to know what can't go and where I need power and grounds for the Ecu to work properly

 

This is what I'm looking for!! Share please and sending a pm

 

this is the easy way... the harness doesnt go to both sides of the firewall like obd1... its easier to repin the ecu end for obd1 than it is to build an entire harness like i think you are trying to do... the distributor plugs will be different, but the pins are the same, so you just have to change the plastic part of the plug to obd1... weed out all of the wires you dont need... this is how i did my ek...