Tools needed:
Drill
Drill bit 1/8"
Marker w/ fine point
Dremel or grinder of some sort
Caliper (for accuracy) or ruler
ECU
Don't forget to take caution of static. Ground yourself so that you don't transfer it to the ECU or the RTP board.
Next I mic'd everything up and drew out a professional drawing in Solidworks.... This is what I came out with....
Orient the cover with the drawing....
And with a caliper I measured out where the holes are going to be. You can also take the trace from before, cut out the holes and then use it as a stencil to trace onto the top of the cover.
NOTE: ALL MARKINGS SHOULD BE ON THE TOP SIDE OF THE COVER.
Next I moved into the ECU itself. Since I ** using a USDM OBD1 P72 I have the knock board. This is why I have the unit where it is.
Inside you will want to fold down some board components so that the RTP board fits. Do it like you see in the pics....
Don't forget the two transistors....
You will also need to have your ECU modified like you would for all other software type EMS's that still use the Honda ECU. Refer to this pic for what needs to be done....
AND DON'T FORGET THE HEADER ON CN2....
Install the socket to ribbon cable adapter....
Mock up the RTP board so that you can cut the USB adapter hole....
Mark it. I opted to remove the label so that I didn't destroy it. It makes for a cleaner looking install....
Here is with the label removed....
Now get your dremel out and cut it like so....
Run the ribbon cable under the ECU chassis brace. This will require that you undo the screws on the back of the ECU to pass the connector through....
BTW this is what the RTP board looks like on the ECU cover....
NOTE: MAKE SURE THAT YOU USE THE SUPPLIED NYLON SPACERS ON THE BACK SIDE OF THE BOARD SUCH THAT THEY ARE SANDWICHED BETWEEN THE BOARD AND THE COVER.
Install the connector end of the ribbon cable onto the RTP board like so....
Install the data cable like so... If you have the 3 wire cable, pin 1 is red. If you have the 4 wire cable, pin 1 is orange
And connect the other end to the RTP board....
That's about it! If you have done this correctly it should come out something like this....
in this picture there is 5 points that i can solder into. but the header is only a 4pin.
1-4 pin used
5 pin unused
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