Purchased a second hand MS kit, what bits are missing :-(
 

I purchased this the other day...

http://www.ebay.co.uk/itm/2708040668...84.m1423.l2649

I'm really not familiar with MS and have a few questions I hope you can help me with. The seller says the 'serial link' is missing, what is that and where can I get one from?

What plugs in to these sockets?

https://www.miataturbo.net/attachmen...ine=1316293883

I have a plug with 6 wires for the left of the larger 2 sockets.

https://www.miataturbo.net/attachmen...ine=1316293883

What is it supposed to be wired in to? It does have similar colour wires to the wideband but then I thought the wideband would plug in to the far left stereo jack type socket?

On the other side I assume is where the stock ECU loom plugs in?

The inlet air temp sensor doesn't have any wiring with it, when I do get hold of a bit of loom (which I think should be easy enough off a scrap yard GM car) where does the loom wire in to?

https://www.miataturbo.net/attachmen...ine=1316293883

Also the bit in the advert about being from an auto so the pin outs for the throttle body will have to be changed, what the hell does that mean?! I've since emailed the seller for some clarity but he obviously isn't in the mood for helping me :-(


Hope you lot can make sense of it.

Cheers, Ad

its a diypnp.

the db15 can be user populated so youll have to pop the cover to see what is going where into it.

the ait sensor pigtail can be purchased at almost any auto parts store, it's for a GM. almost all gm trucks use it.

Automatic cars have a variable TPS sensor, manual cars have can only tell closed, partial throttle, and wide open throttle. If you plug a MS that's expecting a VTPS into a harness that doesn't, you'll flood the engine. Not sure what that power socket is for, that's the little guy, it's not the AFR gauge.

the power socket is used to power up the unit off the car :)

Ahh I see, so for like getting the ECU powered up on a desk to facilitate uploading files from a PC?

Heres some photos of the inside...

https://www.miataturbo.net/attachmen...ine=1316295462

https://www.miataturbo.net/attachmen...ine=1316295462

well i didnt build that one, i can tell you that.

this was advertised as for a 90-93?

Well the seller said 1990-2000 as well as 1990-93 auto...

it looks over built on teh inside. its hard to follow the rats mess, but you can confirm it all here:

http://www.diyautotune.com/diypnp/ap...3-16b6-mt.html

Excellent! That information is just what I was after!

Thanks Braineack!

sequential injection? and yeah you may need to do some re wiring but it will work with your cat

What goes in the left port though? The one that has 6 wires to it. I've been told its possibly for extra drivers like COP and I may not even need to use it, just want some clarifcation though :-)


Cheers

are you refering to your second pic in the first post?

Yes. I know Braineack says its user populated so could be for whatever the previous owner wanted but wondered if its idendifiable in the photos I've posted with the cover off.

it looks to me it is for the sequential fuel mod he added on
did he tell you he added that?
did he tell you what year car it was on?

its recomended that when you flash firmware that it is not connected to the car

other than that you tune as you drive

The only details are have is whats in the ebay link I put. Sellers been a bit relunctant to speak since then :-(

if i were you i would go over the link brain posted
as well as the assembly instructions to make sure it is proper
http://www.diyautotune.com/diypnp/do..._assembly.html

when going over the assembly instructions there may be some differences between that and your board. if there is then go back to that link brain posted and see if that has instructions to modify it in that fashion

i dont know anything about sequential injection but you will need to go over those instructions as you have that and need to know what wire is for what
http://www.diyautotune.com/diypnp/docs/sequential.html

and for that serial link you asked about in the OP
i think this is what you are talking about
http://www.diyautotune.com/catalog/m...thru-p-35.html

all the questions you have should have answers in the links
just go over them all and be sure to have your diypnp handy

You can tell it's modded for a 90-93 just from looking at the connector board, the seq. fuel goes out to the db15. that has to be run spereately on a 90-93 anyways.

#1 - goes to 4N, which is your o2 input - So you can wire the LC-1 directly to the DB15 or the stock wiring, remove the narrow band in either case.
#2, 4, & 6 - appear to be grounds
#3 - 12v
#13 & 14 - INJECTOR 3 and 4.

it appears to be wired correctly. but i dont think fan control will work, he didnt do it correctly.

also this earlier board didnt have a way to trigger the fuel pump for a 90-93 so you'll have to do something for that. if you remove the AFM.

I recommend running the FUEL PUMP hole to 2O. Then brings it to the AFM connector, then you can jump that pin to the fuel pump relay ground pn within the connector itself.

Whoa, that thing is a bit of a mess. My guess is that the seller may have been a little over his head, maybe never got it working 100%, and sold it off. Only a guess though, but as Brainy pointed out, there are some things on there that do not look correct such as the fan wiring. It would probably be best to compare how this is set up to the application guide. I would check every wire, one at a time. Here is the application guide:
http://www.diyautotune.com/diypnp/ap...3-16b6-mt.html