Not 100% on how it connects to the harness at the back of the head.

Not sure what you mean by "back of the head". You mean splicing into the stock coil harness ?

Some more info here COP? Coil on plug? - Page 9 - MX-5 Miata Forum

yes on the 1.8 there is 2 connectors one to each coil thats where i get confused!:)

My 1.6 schematic also calls for a trigger for coils 1&4 and a trigger for 2&3

You still having problems ?

Post specific questions so someone can help you....

I first wired all the coils then connected all the wires that are common. That was all the blacks together,the reds together and then the bues. That left the two triggers (above)
I brought the above wires toward the back of the head and added a ground wire to the negative wires with a lug to connect to the ground on the head.

The rest of the wires run to the connector where the igniter normally connects.
Hope that helps

I found a vendor who may be able to identify the non-Toyota supplier for the COP connectors, which should make them much more readily, and more importantly, much more affordably available. It would be like having the Tyco part numbers for the ECU plugs to make your Boomslang versus having to buy them from Mazda. Here's what he wrote me:

Can someone take pics of their Toyota COP connectors?

I was looking at the pics in this thread and don't see any keyways on the COPs.

As I want to re-do my COP wiring I have searched for the correct connector pins and found different part numbers and vendors/manufacturers:


Sumitomo 8100-0462

http://swsct.sws.co.jp/components/ph...s/81000462.jpg
SWS Components for Automobiles

Yazaki 7116-4025

https://apps.us.yazaki.com/gccx/Conn...als/090_sf.jpg

https://apps.us.yazaki.com/gccx/comp...emale&nolink=Y

And of course the pigtails from Toyota:

160mm long 82998-12440
500mm long 82998-12590

Unfortunately I can't source any of the connectors over here in Germany... :vash:

Greets

These parts were listed as additonal in the main COP thread.

.070-.110" spades for connection to coils

Genuine Coil Connectors with wires cut from harness

DIY Toyota Coil connectors & Contacts $30
Toyota P/N 90980-11885 for the coil connector
Find Toyota Parts at Discount Toyota Parts - DiscountToyotaParts.com
Conicelli Partznet, Pre-Owned Pre-Owned dealership in ,
Tyco P/N 173631 for .070" contacts to fit connectors

Electronic Component Distributor | Onlinecomponents.com

Anybody know if the metal contacts really fit in the Toyota plastic connector housing. The plastic housinga are not too expensive but the metal contacts are

Okay, Ballenger Motorsports is all over this, with the actual correct parts:

Bold font is my addition.

Y'all are welcome :brain:

I can't create an account at Ballenger Motorsport - it always asks to choose the country again... :vash:

HeHo Sven, when you order from there, please order for me too.
I have also Toyota Coils, but currently no Plugs for it.

I will pay you per Bankaccount, and we can make 50/50 with TAX and shipping as well.

Ask also Jonny, i think he will also be intressted.

I had forgotten about the seals :doh:

So, what will be the cost of 4 complete connectors from this latest source ?

Follow the third link. He has them kitted with five pins and seals, so you can have a learning experience without being SOL, for $6.99 as of right now. So four would be $27.96 USD.

You can keep the spoon.

For those interested in buying the Toyota COP's, I found a good source on eBay, who sells them with/without the pigtail connector already on them. Link to his items listing is eBay Seller: jarcocorpii: Car Truck Parts items on eBay Motors , should take you directly to all coils he has right now. I picked up 4 of the "TOYOTA COROLLA MATRIX CELICA MR2 IGNITION COIL 1ZZFE" (90080-19015) coils + plugs on them for $78 including 3-day shipping -- a good deal if you ask me, eliminating the need for a lot of the searching for connectors, pins, etc. Hope it helps someone here.

bompus, thanks so much for that eBay link! I bought 4, they were on sale. $67.95 to my front door. Unlike most of my eBay experiences lately, this one was great. They arrived in 3 days. Exactly as described, if not better. They look absolutely brand new. The pigtails have about 2" of wire. This saved me a lot of time scrounging, so maybe the price was a little high, but having the pigtails included and not having to deal with the tards at my local junkyard made it worth while. I started to install them today.

That's a great deal especially with the pig tails.

with those $4.78, 160mm repair slices, you still have to buy the plastic connector and buy 16 of those right? That's $75+shipping+the connectors, that ebay store link given above would be a much better deal.

Mine looks brand new too.. All the connectors were the same, except for one had smaller wiring. They all work good for me as far as I know, but now I think I have a stuck-open 600cc injector (or 2) problem -- no fun. Glad I could be of help.. Let me know how they work :)

This same guy currently has just the pigtails for $7 each also. That seems a little high, but they are factory and only one click away.

TOYOTA IGNITION COIL CONNECTOR WIRE HARNESS 1ZZFE 2AZFE:eBay Motors (item 270447824627 end time Nov-24-09 06:44:39 PST)

This thread is Awesome. I made my own COP setup this weekend and it's flipping amazing. I never thought my ignition system was that inefficient. There’s so much power through the entire RPM range and much more seamless transition from vacuum to boost. This is one of my favorite mods. Thanks Lazzer408 and Brainiack for so much useful information.

^ +1 Thanks for all the info. It's only a matter of time before someone posts before and after dyno results.

That would be nice information :drool:

Not likely to make a big difference on a stock car. With pretty much any other setup, the difference it makes will depend on many factors, some of which can be controlled to be representative (we can only hope they are, such as plug gap and condition) and some of which will be unique to the car, such as boost level, tune, richness, condition of stock ignition components (coils and wires), etc.

Just got my connectors from the previously mentioned eBay seller. All four have approximately 3.235" sticking out. Three of the four are great, one has had it's clip broken off, but the rubber seal holds it in good enough for now. In fact I have one of the good ones clipped on, and I'm having difficulties getting it off. I'd rather pay $10 to buy a new one than go through the hassle of trying to get a replacement, the seller probably has some used part policy written out anyways.

If anyone's wondering, Toyota apparently wires their ground, trigger, and tachometer with 14 gauge, and the 12v with 12 gauge. I'm not sure if my gauges are right, I measured approximately .0825" for the 12v, and .0620" on the other three. Wikipedia says that's 14 and 12, however I think that doesn't include the insulation.

P.S. while writing this I did finally manage to get it off, had to use a screwdriver while I pinched with my fingers. My thumb now hurts.

That guy just quoted me $125.17 for four coils shipped. WTF?

Yeah I think the insulation is throwing off your measurements. My pigtails obviously came from different donor vehicles since the wire colors varied between them, but according to my wire strippers they all had 16 ga for the +12V, and 20 ga for the tach & trigger. For the ground, two connectors had 16 ga and two had 20 ga.

I bought mine from the same seller back on Sept. 1 and it was $75 shipped for a set with the Toyota connectors/pigtails. At the time he had sets without the Toyota connectors for $60-ish. Maybe he's seen a spike in demand and raised his price? You could see if he'd bite on a lower offer. If not it might be time to hit up car-part.com or your local yard because $125 is crazy.

I have a question about COP I have set of coil from 05 collora and the connector do I need to install dwell reducer or not or I could just wire it to old coil pack wire and then I'm good? help please!

I wish I could help you on the question, but I am not familiar with cops.

I am responding to let you know that you really should go to the meet and greet section before you start posting elsewhere. Also, this is an old and long thread. Have you gone through this thread to see if the answer is in here You should do searches before asking questions. Be patient, there is a lot of useful info in here, but if you break the rules, you will pay a price for it. There is little tolerance of repeated questions that can be easily answered by doing searches here.

Go to the meet and greet. Tell us a little about yourself and car. If you have questions, search first, and then ask questions in the proper section.

Good luck

I know everyone is into DIY solutions for everything but what about this: Boundary Engineering

A little expensive, I know, but seems like a pretty tight system, any opipions?

I thought you were a badass who owned Ducatis and a successful business? Oh wait, you're a lying sack of shit, and a bitch, and full of shit. :giggle:

You can always spend more on "better". The trick is to spend "enough" on each thing so the whole car has no weak links. A car with no weak links is infinitely better than a car with a 25 billion dollar engine and bad suspension.

Weird, I looked at a set of 90919-02244 coils at lunch today. Pulled the #1 wire off my '99 and stuffed one of the coils down the hole until it engaged on the plug, no problem.

Just scored four 90080-19015s on Ebay for $60 with free shipping. Cheaper than the local deal. Now, off I go to Ballenger Motorsports to get connectors.

Is there anyone running a COP setup on the 01+ insted of the factory COP and wire setup? If so how was it wired?

Have a great day,
Jared

My order for connectors from Ballenger Motorsports just shipped out today. I paid them 67 days ago. not a word on why the delay. I admit I only sent one followup message in that time period, but come on!

Mine, too. I actually proactively communicated with them, and know that they didn't get the connectors in from Japan until right about now. From the time they got the parts until they shipped was very short. It was the supplier in Japan taking forever.

I’m happy to say my COP’s have worked flawlessly for over 2 years now. However it never hurts to have a few extra ;)

dayum, sell me a set on the cheap :makeout:

What are you waiting for? He just shipped me a set after I saw this photo. They came in the mail fast and are in great condition.
Hopefully I will be putting them on next week.

Waiting for money haha, I got a lot of other shit I've been having to buy so the car will run, improvements like this over stock have to wait.

i went to radio shack looking for a 10,000uf capacitor and the highest they had was 4300uf. and that thing was huge. can i see some pics of your capacitors installed and the size??

Wire two of them side by side the positive of one cap to the postive of the other and the negatives together too. Then wire that as per the schematic.
The capacitance value of the two add up.

8 weeks isn't bad. I ordered a bunch of connectors a while back (60+ IIRC), got a shipment of 32 of them, and when I called to ask where the others were they told me it would be 12+ weeks because the rest had to come from Japan.

If it's the physical size you're worried about, the rated voltage of a cap dramatically affects the size. IIRC the ones I saw when I looked at Rat Shack were rated for 50V, way more than we need.
This is the exact cap I have in my COPs. Panasonic TSHA series, 10,000 uF, 16V, good rated lifetime at the high temps it will see under the hood, a bit less than 1" in diameter and 1" height.

I tried a 15,000uf cap and it actually didn't do any good. Changed my spark plugs out and gapped them at .020, low and behold under boost it quit cutting out!

So I have this ginormous cap just sitting around.

http://www.jugrnot.com/IMAG0153.jpg

Are you guys able to use inductive timing guns on your COPs ?

I have to verify my MegaSquirt timing and I hope I don't have to re install my stock coils.

Thanks

I believe it was :brain: who told me long ago you just clip the pickup on the harness for the #1 coil. Worked like a champ for me. Far as I know there isn't a special timing light for COP vehicles.

yes of course you can.

Thanks, I'll try it.

Wow, good question. Thanks for asking that.

When you remove the stock coil off of a 97 it leaves two connetors. Do I just splice the two sets of wires into one so I can splice in the cop harness?

Edit> I'm not doing it the pnp way, I want to hardwire them into the harness.

You would take power, ground, and trigger from one pigtail and only trigger from the second. There is no reason to get power and ground from the second pigtail because it ties into the same wiring as the first pigtail. You could however put a capacitor across the power and ground of the second pigtail.

Or you could use the oem power wiring to trigger a relay that was wired to the fuse box.

It worked !

Just finishing up my harness and am curious on how to wire up these capacitor's. I bought two 4700's from radioshack. I know I'm supposed to connect one wire to the + wire from the harness and the other the - side. The question is...how do I know which side is what on this capacitor? It just has one wire coming out of either end...The other difference I saw was one end has the rubber on it and the other is just metal(at the base). Thanks!

Just got mine finished and installed. Ran great on the very first time I cranked it. I didn't install the capacitor and it seems to run fine.

Far as I know the cap is said to smooth out voltage fluctuations.
It was added by greater minds than mine so I don't know if there are any consequences to not having it....;)

I'm trying mine without the capictors for now too.

i finished my harness with the capacitor installed, i wont be trying it for a few more months though. i will post pics tonn and get some feedback

Attachment 201124
Attachment 201125

looks really good.

hey guys is there a fix for the 98-99 (NB) overheating problem? if so i must have missed it....

also if there is braineack could you please put it on your Upgrading to Coil on Plugs (all years) COP writeup for easy reference?

Cheers

Here's the harness

Attachment 201096

Here they are on the car.

Attachment 201097

I was already in need of a new set of plug wires. I bought the coils with the pigtails on E-Bay for $63.00 shipped. I already had the wire, split loom, solder and soldering iron in the garage. So for about the price of a decent set of plug wires I have this.

I soldered the harness together in my living room while I was watching a college basketball game and installed this in the car during half time.

Thank you to the starters of this thread. You made this mod so easy. With this being as cheap and as easy I really don't see why more people aren't on this band wagon.