Hondata

http://hondata.com/techvtecrelaydiagram.html
when using this vtec contrl i was confused any help would nice just want to know if i got this right when they say 12v switched do they mean put it on an accessary power and i am using p75 with a16 ALTC so i must invert it what do i invert thanks :?:

Switched power means that it receives 12 volts only when the key is in the on possition. THe fuse box is the best location to use for this as it has empty plugs you can connect a spade connector to that are switched power sources.

cool thanks 4 the invert in the hondata do i just select invert or do i have to invert the wiring

You check the box for invert output

to day i wired in the relay for the vtec just like in the diagram and the vtec is stuck on what could be the problem, im ussing v1-2-7 and the relay is good it is come n off of a16 and its inverted.

Have you tried unchecking the invert output box? Is the input you are using for vtec activation still connected to it's original component?

i tried un checking it. stil the same and yes it is still wired in 2 the harness if i un hook it will it mess any thing up since its the ALT C altinator i dont know what it dose.

i just tryed unhooking the wire the car will not start if i un hook it wile it is runnin is will slowley drop rpms till it dies. if i hit the gas it dies what does a16 do

You must follow the diagram EXACTLY. The wires cannot go to anything else. Alt C is alternator control and is not needed.

i wired it directly from the ecu just now and with that wire cut my car wont run.so i switched it to a15 and it is still stuck on

The only reason a car would not start after trying to wire this is if you wired something incorrectly. I would suggest double checking your wiring and you may want to have a shop that is familiar with engine swaps and wiring take a look at it.

iv done more tha 15 swaps from ef to ek and i put a 4g63 in to a 95 n/t eclipse witch every one said was impossible and could not be done for under $10,000 and i did it for $1700 including the motor and re wired them. am pretty sure i know what im do n and when i took it t a autharised hondata dealer they told me to bring them a p28 and have it re socketed if i wanted vtec and wheen i told them about the relay they said "never heard of that". sorry if i come off as an ass im not trying to be one

how do yall number the pins after seacching there seens to be 3 diffrant ways that they number the pins on a obd1 p75 this is the view looking at the ecu
one clip a ( the one i used cas inside the ecu it has 1, 13, and 26 marked
13 12 11 10 9 8 7 6 5 4 3 2 1
. . . . . . . . . . . . .
. . . . . . . . . . . .
26 25 24 23 22 21 19 18 17 16 15 14
two
1 2 3 4 5 6 7 8 9 10 11 12 13
. . . . . . . . . . . . .
. . . . . . . . . . . . .
14 15 16 17 18 19 20 21 22 23 24 25 26
three
1 3 5 7 9 11 13 15 17 19 21 23 25
. . . . . . . . . . . . .
. . . . . . . . . . . . .
2 4 6 8 10 12 14 16 18 20 22 24 26

sorry for the crude pin outs but the web sights would not let ne coppy and paste

In Smanager, go to help, contents, reference, ECU connectors. THis should make it clear

this is deffinatly not how i have ever wired ant thing in the past but this makes it clear hopefully when i wire it in tonight it will work it would be nice if yall added this to the tech page ar least the pinout of conector A it maght help others in the future
Tanks for all the help il let you know if it works!!!!!