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Old Jul 15, 2016 | 01:43 PM
  #1  
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Default COP help

im new to this place so im sorry if i have missed it, but i have found the thred about how to wire up all the toyota coils ect,
im really not sure where to wire in the capasitor :/ can anywone help?
Old Jul 15, 2016 | 02:48 PM
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There's no need to run a capacitor from what I've read/search, but to answer your question, the capacitor goes from your 12v to GND.

I'm assuming you're talking about Toyota COPS.

Last edited by .one lane; Jul 15, 2016 at 04:01 PM.
Old Jul 15, 2016 | 03:04 PM
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yes on the toyota coilpack setup, so your saying just to follow the diagram for the coil packs and thats it? no cap needed? plus i might look dumb now but the 12v to gnd is that on the coil pack loom?
Old Jul 15, 2016 | 03:10 PM
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https://www.miataturbo.net/useful-sa...writeup-12704/

Did you read this? It's the first thing that pops up when you type "miata toyota cop". Should answer everything. Some use capacitors, some don't. If you have one, it wouldn't hurt, if you don't it's probably fine.

Yes, cap goes in the coil pack loom, not sure where else it'd go.
Old Jul 15, 2016 | 03:37 PM
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Originally Posted by PhilFPM
yes on the toyota coilpack setup, so your saying just to follow the diagram for the coil packs and thats it? no cap needed? plus i might look dumb now but the 12v to gnd is that on the coil pack loom?
Yes, to all three of your questions.
Old Jul 15, 2016 | 03:55 PM
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So now the last two posters have conflicting advice. One says capacaitor, one says no.
Old Jul 15, 2016 | 03:59 PM
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If you have it, wire the capacitor in, if you don't, don't worry about it. I don't have a capacitor in mine, and it's been running fine.

Here:
https://www.miataturbo.net/engine-pe...l-plugs-82587/
Old Jul 15, 2016 | 04:02 PM
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one lane is that with a standerd ecu?
Old Jul 15, 2016 | 04:08 PM
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building a "show car" for my gf as she has always wanted a super clean n tucked ect only
got it back from paint tuesday nite, was bare shell and got quite alot done so far just wanting to do
cop's as look nicer orderd all the parts

COP help-2w6zac8.jpg
Old Jul 15, 2016 | 04:12 PM
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Originally Posted by PhilFPM
one lane is that with a standerd ecu?
Huh?
Old Jul 15, 2016 | 04:45 PM
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was asking if urs is on a standerd ecu thats running fine
Old Jul 15, 2016 | 05:13 PM
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Oh. I'm running a ms3
Old Jul 15, 2016 | 06:34 PM
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Toyota cops wont work with a stock ecu. stock ECU will blow the coils because of incorrect dwell.
Old Jul 16, 2016 | 03:28 AM
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ahh ok thanks guess that plan is out then
Old Jul 16, 2016 | 09:54 AM
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Originally Posted by aidandj
Toyota cops wont work with a stock ecu. stock ECU will blow the coils because of incorrect dwell.
this is untruth.

there are/were plenty of people running them on stock ECUs without any negative effects.

There was only an issue with NB setups, but it wasn't that they would blow, they simply wouldn't fire.


@rleete just did it--after a bunch of naysayers said not to--and it's been fine.
Old Jul 17, 2016 | 04:42 PM
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Originally Posted by Braineack
this is untruth.

there are/were plenty of people running them on stock ECUs without any negative effects.

There was only an issue with NB setups, but it wasn't that they would blow, they simply wouldn't fire.


@rleete just did it--after a bunch of naysayers said not to--and it's been fine.
Stock ECU, 1994 model. No issues whatsoever. Runs better, smoother. I've been driving the hell out of it for two weeks in blazing heat. No problems at all.
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