aeathb

iTrader: (1)

Hello there,

Long time follower, first time poster. So I am a little concerned posting this as I know how much you guys all love people who don't search, but I have honestly tried so please don't hate too much! I am hoping to turbo in the near future, but to the recommendations on this forum, I want to install a DIYPNP (in parallel with my ECU) to get familiar with it before I worry about boost. My questions comes in regard to the DIYPNP wiring: I have looked all around the forums, saw the "How to make and install your own Diy MegaSquirt " by Braineack in the stickies, but I don't see anything specific for the 2000 miata. I know I could get the standard PNP, but I'm not picking the DIYPNP for the price; I really want to learn. I did not see the map for a 00' on DIYautotunes website (maybe they include it with the product, I assume that's where most people buy their MS products?), but I just want to know that I will have some info before I pull the trigger.

Thanks in advance!

thenuge26

iTrader: (2)

I haven't looked into a parallel install at all. But the DIYPNP will literally just plug in to where your stock ECU is. So for a parallel install that may not be the best way to go.

If you want to build it yourself, get one of the MS3x kits. If you don't, get the assembled MS3x kit. You will need to build an adapter harness, but I assume you would have to do that anyway for a parallel install with a DIYPNP.

aeathb

iTrader: (1)

You are correct: searching specifically "parallel install 2000 miata" I see that it isn't something that can be done. There is SOOO much information floating around, mostly fragmented, on MS products it's hard to tell what year miata can do what, with which MS unit I guess I will just have to grow a pair and do a standalone. I don't really like losing the OBDII support and simplicity of not having to worry about the little things the ECU does, but I guess it could be worse?

thenuge26

iTrader: (2)

Yep, you could blow your car up with bandaids.

Huh? Why not?

That said, IMO if you aren't doing this for emissions testing reasons, you are doing it for the wrong reason. Tuning the "little things the stock ECU does" is easier and less complicated than a parallel install. Unless you REALLY like soldering.

bahurd

iTrader: (8)

You don't say where you are and if emissions check is a part of the equation?

Do you want to do the soldering or do you just want to buy something and plug it in, then work on tuning?

You can buy a kit from DIYAutoTune - Miata Accessories which you know or can buy assembled units from Rev - MS Labs - Miata Accessories or, I guess Braineack is still offering his services - https://www.miataturbo.net/miata-par...ssembly-14598/

Depends on your pain threshold I guess as to which direction. I have an MS2E from Rev that I'm in the process of installing/tuning on my 2000.

aeathb

iTrader: (1)

This is my first real car project that dips into the electronic side of things, and in my head running parallel just "sounded easier." Not concerned emissions wise, I just liked the CEL warnings occasionally, and voltage readings from the O2 etc for troubleshooting. I suppose there is only 1 real good way to learn this stuff! So being my only car and I'm off at school, since this is PNP I could take my time with this, and plug it in and try and get it working, then when I ran out of time I could just plug back in the stock ECU right?

bahurd

iTrader: (8)

If emission check isn't a consideration then 'parallel' is a real PITA and not worth the hassle (IMHO).

Rev does a lot with the CEL in his software that probably goes further than the factory did (in fairness, I'm not aware of what the others have implemented) and you can read through his thread and PM him.

Good luck, and you're right.... read a lot and jump in.

thenuge26

iTrader: (2)

CEL warnings: present on MS, except you can make it come on for whatever parameters you want. Much better than OEM.

O2 voltage readings: a Wideband O2 will be required for any fueling modification, and will give you infinitely more data than the stock ECU.

Troubleshooting: with the stock ECU you have nothing, with a Megasquirt you will be able to datalog, which as you can guess is infinitely better.

EO2K

iTrader: (37)

Honestly, the MS only uses the bare minimum of sensors and systems that it takes to run the car. This means things like TPS, ignition, O2 (wideband, of course) IAT, CLT, etc. The rest of the systems in the car like EVAP, purge, EGR, etc that are there for emissions reasons and the MS completely ignores them. In my experience, those non-essential systems are the ones the CEL screams about the most. If your crank sensor goes bad, the car don't run and you see it in the log on the MS so you fix it, easy peasy. Hell, I actually consider that easier than trying to decode a CEL.

Shoot Reverant a PM and see what he can do to set you up with a MS3 Basic. He has a lot of CEL functionality built in to his units that are not present in the DIYAutoTune version, so that might be worth it for you as a middle ground.