MpGuino Now in KIT form

[bbjsw10]

Originally Posted by i_am_socket

Too bad the kit doesn't come with wire taps. Hopefully off to Rat Shack this weekend...

Question though... am I looking for this or this?

I would do this will go much farther than those $2 taps, could ever think of. Just my .02

[dcb]

what bbj said I tried the clips, they are really cheesey. I just carefully cut away a bit of the insulation where you want to tap the signal/power/ground, solder up the lead, cover the junction it in silicon/hot glue/paint/bacon grease/whatever to keep it from oxidizing.

[i_am_socket]

Yes, I could certainly go that route too, but I have a terrible time stripping the middle of a wire. Ah, well. Better to do it the right way than "close enough" with electronics inside expensive machinery that I'm trusting my life in.

Thanks guys

[Nevyn]

A tip if you want to solder:

Find nail clippers. They work GREAT for making minute snips in insulation without nicking the wires.

Also, if instead of using the side of the clippers to clip with, you place the front of the clippers flat against the insulation, you can use them to "gnaw" a starter patch open.

[Wingmn]

Hey guys, I ordered a Ver 2 kit, and I've got some things I'm concerned about... I have a 93 Saturn SL2 (Auto) and I have a Haynes Manual which is where I'm looking at the wiring diagrams to figure out where I'm going to tap in my wires.

It looks like I have a VSS Hi and VSS Lo wire. Also, there are wires for each individual fuel injector..

Which wires will I use? The 12 V and the ground are a no brainer, but the VSS hi and VSS lo, and does it matter which injector I tap into? Those are my concerns, these are all wires going into the PCM. Is that the same as the ECU that I've read about? I'm assuming it is, but I just thought I'd ask.

I've only seen a 1997 Saturn as far as reference numbers for hooking up the MPGuino, so if anyone has any tips for me I would REALLY appreciate it. Thanks!

[dcb]

Do you see a "speed" signal anywhere? should be coming out of the ecu going to the speedometer cluster.

[Wingmn]

Yes, I do see a a pin labeled speed out

[dcb]

That's the one you want

[Wingmn]

Any suggestions on the Injector wire? Does it matter which one I tap in to? 1,2,3,4?

[dcb]

any injector will work, it's just a question of which wire (of two possible wires). If you unplug the injectors and turn on the ignition (not start), you can probe an injector harness plug, you want the lead that doesn't have 12 volts on it when measured to ground.