Technical Punto mk2 coil pack trigger wire

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Technical Punto mk2 coil pack trigger wire

conors891

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Feb 1, 2015
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Hi, I am building a DIY rpm gauge and I plan on using the trigger on the coil pack as a rpm signal. As far as I know its negatively triggered so I thought you would have one wire 12v and the other wire pulses GND from the ecu. Using a multimeter I have tested both wires off the first coil pack and both seem to be a GND wire with the ignition turned on. Maybe it all changes when the engine is running. Theres a yellow/black wire and a white/orange wire. If someone could shed some light on the situation it would be appreciated thanks.
 
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Slight problem using one coil signal that the ciuq and seis have is it causes the signal to only be 50%

Have a flick through there guides section

But tbh itd be 10x easier to fit a sporting dash, and have it proxy aligned to make it all work properly

Yes the coils is neg trigger

The coil and injector share the same power feed, so I wire is live with 12v + when ignition on

Having 2 grounds is probably u testing wrong

Ziggy
 
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conors891

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Feb 1, 2015
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Sorry I didn't even tell you what car it was. It's a 2000 mk2 punto. It's a waisted spark system so there is two coil packs, one per pair of plugs. There is two wires going into the both coil packs. I tested the first set and they both gave GND when tested , one was slightly better then the other buy about 0.1V. I shall test the second set of wires and see if I get a different result. Thanks
 
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Sorry I didn't even tell you what car it was. It's a 2000 mk2 punto. It's a waisted spark system so there is two coil packs, one per pair of plugs. There is two wires going into the both coil packs. I tested the first set and they both gave GND when tested , one was slightly better then the other buy about 0.1V. I shall test the second set of wires and see if I get a different result. Thanks

Well aware of the 8v system

There ahud be a feed one side, thats what the wiring diagrams say
Ziggy
 
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conors891

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I'll take a look at a Haynes manual and see if I can figure it out. Thanks
 

maramark

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Aug 20, 2014
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the coil is grounded and the spark is triggered by the ecu opening the circuit. im sure ish
 
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