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Old 12-11-2013, 10:19 PM   #11 (permalink)
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honda cb125 - '74 Honda CB 125 S1
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Quote:
Originally Posted by 1994CivicVXHB View Post
Man four Civic VX's?...you win the Civic VX jackpot or something?
I own one, my parents own one plus a solid parts car that might come back to life, my brother owns one and I sold my old one to a good friend who lives three blocks away and we all want to see what our gas mileage is.
So only 1 of the 4 is mine, part of the reason that I'm not willing to cut in to a car that I could sell on Ebay for $5,000 either.

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Old 12-12-2013, 12:23 AM   #12 (permalink)
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Quote:
Originally Posted by Ryland View Post
... I have 4 different VX's that I want to be able to use a single MPGuino on ...
Once you can tap into the four appropriate wires, you can crimp connectors onto the end for a Molex plug. (Or similar.) Run the wires from the MPGuino to the mating plug. Make four copies of that first bit, and there you are!

Just make sure the crimps are tight.

You can get Molex connectors at Radio Shack or other electronics shops. Or GM Weatherpak connectors at many auto parts places.

-soD
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Old 02-08-2014, 06:37 PM   #13 (permalink)
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The cleanest way is to make a patch harness i.e. a short extension that plugs in between the two - male and female - connectors that are already on the car. That may be easier said than done.

If you want to do it at the ECU, the harness end is easy - buy the wiring harness connector and a few inches of the wiring harness cut from a wreck at the junk yard. The ECU end is more difficult.

If you can obtain an ECU inexpensively - maybe a faulty one from a repairer - you can solder the ECU connector from that onto a piece of perf board and then the wires from the section cut from the wreck onto that.

The connections to the accessory eg. MPGuino can be soldered to the perf board or spliced into the new wire sections.

Making connections elsewhere may be easier because wiring connectors are usually generic and found in a variety of makes and models in various locations around the cars.

Making a patch harness across a wiring harness connector away from the ECU means cutting a section out of the wiring, a few inches either side of connector and including the connector, from the donor car/harness. Then unplugging the connector and joining the ends of the cut wires.

That can be done by splice, solder and heat shrink or, again, on perf board.


Last edited by Occasionally6; 02-08-2014 at 06:45 PM..
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