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-   -   What do you guys think about using VW 1.8T Coils? (https://www.miataturbo.net/diy-turbo-discussion-14/what-do-you-guys-think-about-using-vw-1-8t-coils-28796/)

cardriverx 12-01-2008 11:15 PM

What do you guys think about using VW 1.8T Coils?
 
My toyota COPS are messing up in the cold, so I need new ones. I found some VW 1.8t cops for cheap, and they are new. Anyone see any problems with them? I found this info

Pin 1: Connects to Pin 1 on all other coils and then to +12v from engine control relay (or fuel pump relay).
Pin 2: Signal ground
Pin 3: Signal from ECU (0, +5v)
Pin 4: Power ground (Chassis)

so would pin 3 be the tach?



I found this too!

VW Coils with MEGASQUIRT





so bacially, what would I have to modify on my harness for the toyota cops?

cardriverx 12-02-2008 01:00 AM

ok I figured out that pin 3 would be the trigger, pin one is the 12V...

and I dont understand why there are two pins for grounds?

naarleven 12-02-2008 01:24 AM

My uncle who is far more learned than I told me today that you can use the COPs off a BMW 318 easily.

Anyone ever heard of this?

mikeflys1 12-02-2008 01:26 AM

Aside from the obvious problem of them being electronics off a VW, I think 1.8t coils specifically were recalled for burning out so quickly. So I guess if you got the replacement ones you'd be ok but I'd look for another set of toyota ones.

cardriverx 12-02-2008 01:37 AM


Originally Posted by mikeflys1 (Post 336411)
Aside from the obvious problem of them being electronics off a VW, I think 1.8t coils specifically were recalled for burning out so quickly. So I guess if you got the replacement ones you'd be ok but I'd look for another set of toyota ones.

The 06B 905 115R coils were a problem. I found a set of the 06B 905 115L's, which are the updated ones, and they are new, and I can get a smokin deal.

Now... anyone have any ideas along with the wiring?





naar- like these? http://cgi.ebay.com/ebaymotors/BMW-C...116#ht_858wt_0

miatamania 12-02-2008 07:26 AM


Originally Posted by cardriverx (Post 336414)
The 06B 905 115R coils were a problem. I found a set of the 06B 905 115L's, which are the updated ones, and they are new, and I can get a smokin deal.

Now... anyone have any ideas along with the wiring?





naar- like these? eBay Motors: BMW COILS IGNITION COIL 318 325 525 530 540 740 (item 310097506929 end time Dec-03-08 12:48:44 PST)

I don't care what you tell me, they all have problems. But the newer ones are a good bit more reliably than the older ones.

TravisR 12-02-2008 08:17 AM

After reading this more closely... The #3 will not be the tach unless the dwell is the right length. The tach signal is a 1.5ms square wave. It probably won't work.

Archetype 12-02-2008 09:11 AM

As said above, unless you go aftermarket (BERU) you are still going to be burning coils out at completely random intervals. Being from a VW background this is entirely true and witnessed by myself multiple times.

There is a reason 1.8T guys run around with spare coils in their glove box. Because they NEVER know when one can die. could be 10k miles or less, sometimes they last for 40k. Rarely more.

cardriverx 12-02-2008 12:31 PM

alright guys, thanks. I guess ill have to search more for toyota cops.

SolarYellow510 12-03-2008 02:07 AM

Yeah, the BMW coils in that Ebay link are for the M50 six-cylinder. They are a POS part, renowned for burning out. There's a "why does my car run sorta crappy" thread with like 1400 posts in it on Bimmerforums. Coils are one of the more common fixes, but weren't it for me.

BMW FTL.

Toyota parts FTW.

Saml01 12-03-2008 10:02 AM

Cardriverx, what kinda symptoms are you experiencing with your coils in the cold?

cardriverx 12-03-2008 11:01 AM


Originally Posted by Saml01 (Post 336946)
Cardriverx, what kinda symptoms are you experiencing with your coils in the cold?

a couple of them not working lol. I just scored a set of toyota ones for pretty cheap so I should be good now

Saml01 12-03-2008 12:02 PM


Originally Posted by cardriverx (Post 336977)
a couple of them not working lol. I just scored a set of toyota ones for pretty cheap so I should be good now

Like at all?

hustler 12-03-2008 12:13 PM


Originally Posted by miatamania (Post 336435)
I don't care what you tell me, they all have problems. But the newer ones are a good bit more reliably than the older ones.

um...that's deviding by 0/undefined.

cardriverx 12-03-2008 02:09 PM


Originally Posted by Saml01 (Post 336994)
Like at all?

like when the cars been sitting in the cold, 2 of the cops dont work. If I take a hairdryer to them, they work perfect.

sixshooter 12-03-2008 02:36 PM


Originally Posted by cardriverx (Post 337047)
like when the cars been sitting in the cold, 2 of the cops dont work. If I take a hairdryer to them, they work perfect.

The logical fix is to install the hairdryer and be done with it.


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