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Old 10-04-2013, 01:45 PM   #1
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Default NEED HELP MS,GREDDY KIT,METH WONT RUN

Hi guys im new here. I cannont get my 1992 miata to run. I purchased it not running and i just wanted to share a few pics.... I also wanted to say it has perfect compression and leak down results across the board. When i bought the car the harness was beyond a nightmare.... Since then i have removed every harness on the car, Completely installed a uncut un hacked harness.... Now heres some pics below..... of all the stuff the previous owner did and im still clueless about...







































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Old 10-04-2013, 01:57 PM   #2
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NOTE: all pictures above are the day i got the car before i swapped harnesses etc.... Im just looking for any informtion regaurding what i actually have here.... FROM the research i have done... I know it has COPS, I know the black box contains resistors in it for the COPS. I also know it has a 36-1 Crank trigger wheel, It has a CAS DELETE, It has AIT SENSOR IN FMIC, It has DEVILS OWN STAGE 2 DCV meth kit. THE TPS LOOKS REALLY WEIRD AS WELL
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Old 10-04-2013, 03:17 PM   #3
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Looks like you have a standalone ECU. Did you try connecting up to it to see what might be going on there?
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Old 10-04-2013, 03:24 PM   #4
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Old 10-04-2013, 03:28 PM   #5
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Quote:
Originally Posted by Harv View Post
Looks like you have a standalone ECU. Did you try connecting up to it to see what might be going on there?
It has a megasquirt with tons of options.... I had a member on here label everything for me and im awaiting its arrival as we speak so i can reinstall and see what happens with the new harness..
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Old 10-04-2013, 03:31 PM   #6
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So that's a "No?"


But in the meantime, you're wondering why your 92 Miata won't run on stock ECU without a VAF, with COPs, and probably with bigger injectors, right?
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Old 10-04-2013, 03:34 PM   #7
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Quote:
Originally Posted by slammedkouki View Post
It has a megasquirt with tons of options.... I had a member on here label everything for me and im awaiting its arrival as we speak so i can reinstall and see what happens with the new harness..
As concealer404 noted all that stuff you have (or don't have) on the thing means it won't work with the stock ECU.
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Old 10-04-2013, 04:22 PM   #8
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Honest advice?

I wouldn't even know where to start on this one. The best thing would be to make it as stock as possible as follows:

1. Restore OEM harness (you already did that, right?)
2. Restore OEM ECU
3. Restore OEM AFM
4. Restore OEM Fuel Injectors
5. Restore OEM CAS
6. Restore OEM Coil Pack with Igniter

With the above, it should at least start and idle. If it does, then you can start remodding the car in a logical order. My order would be:
1. Switch to MS. Get it running.
2. Delete AFM. Get it running.
3. Upgrade injectors. Get it running.
4. Upgrade to COPs. Get it running.
5. Upgrade to Crank Trigger Wheel. Get it running.
etc.

Bottom line, start from a known-known and add the new bits one step at a time.
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Old 10-04-2013, 05:32 PM   #9
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Quote:
Originally Posted by concealer404 View Post
So that's a "No?"


But in the meantime, you're wondering why your 92 Miata won't run on stock ECU without a VAF, with COPs, and probably with bigger injectors, right?
I have connected it to a laptop. it came with laptop and 3 tunes. The tune for no meth, and 10 lbs of boost was on it..... Its set up properly i went through and made sure all the settings were right..... I Cracked open the MS to look and make sure she wasnt fried.... she wasnt so thats good. Then I replaced all the wiring from front to back. I replaced everything wiring wise in my 1992 mx-5 with 1990 mx-5 harness and now i have extra plugs with nothing to plug into them...... I was told the harness was a 1992 harness but was lied to. So now i have all new 1990 harness for mx-5 1.6 MT etc..... any idea if this can still work guys?
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Old 10-04-2013, 05:33 PM   #10
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Quote:
Originally Posted by hornetball View Post
Honest advice?

I wouldn't even know where to start on this one. The best thing would be to make it as stock as possible as follows:

1. Restore OEM harness (you already did that, right?)
2. Restore OEM ECU
3. Restore OEM AFM
4. Restore OEM Fuel Injectors
5. Restore OEM CAS
6. Restore OEM Coil Pack with Igniter

With the above, it should at least start and idle. If it does, then you can start remodding the car in a logical order. My order would be:
1. Switch to MS. Get it running.
2. Delete AFM. Get it running.
3. Upgrade injectors. Get it running.
4. Upgrade to COPs. Get it running.
5. Upgrade to Crank Trigger Wheel. Get it running.
etc.

Bottom line, start from a known-known and add the new bits one step at a time.
This is honnestly what i should do. I feel like its gonna take a big chunk of change to do so... :( The Car ran 3 weeks ago I just dont understand...
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Old 10-04-2013, 06:00 PM   #11
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Have you done any real troubleshooting? Cranking logs?
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Old 10-04-2013, 07:00 PM   #12
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Quote:
Originally Posted by slammedkouki View Post
The Car ran 3 weeks ago I just dont understand...
I thought you said you purchased it not running?
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Old 10-04-2013, 07:55 PM   #13
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Is ok to run your iat sensor in your intercooler?
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Old 10-04-2013, 08:02 PM   #14
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Absolutely. In fact, it's encouraged.
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Old 10-04-2013, 09:02 PM   #15
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I can't tell if your being serious lol.
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Old 10-04-2013, 09:58 PM   #16
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Quote:
Originally Posted by concealer404 View Post
Have you done any real troubleshooting? Cranking logs?
See i am very new to standalones, and megasquirt in general.... I dont even know about how to do one.
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Old 10-04-2013, 10:00 PM   #17
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Originally Posted by hornetball View Post
I thought you said you purchased it not running?
I purchased it off a local. I have seen the car running and driving before. He sent a video of it when it was acting up.... It wouldnt rev past 3k rpms with led me to belive some sort of map/maf sensor problem.... But the next day when he tried to start it after he stopped driving it due to the 3k rpm problem it wouldnt start again. So i bought it for 4,000.00
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Old 10-04-2013, 10:15 PM   #18
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MORE PICS...


METH INJECTION ON COLD PIPE.


INTERIOR SHOT


EXTERIOR SHOT






COPS


CAM ANGLE SENSOR DELETE AND COOLANT REROUTE


CORRECT ME IF IM WRONG BUT I BELIVE THS IS A E30 TPS?!?!?!


CRANK TRIGGER WHEEL AND HALL SENSOR


I belive this is the stock IACV


HARNESS TEARDOWN


THE FREEZE PLUG THAT IS NOW IN PLACE OF THE STOCK CAM ANGLE SENSOR


THIS UNIT HOOKS UP FROM MY HALL SENSOR AND CRANK TRIGGER WHEEL TO MY MS




MORE HARNESS TEARDOWN


MY MS






THIS IS THE INSIDE OF THE BOX THAT CONNECTS THE CRANK TRIGGER WHEEL AND HALL SENSOR TO THE MS

ANY POSIBLE HELP,INFO,INPUT,SUGGESTIONS,ETC are so greatly appriciated guys..... Im really trying to get this monster running again. THANKS IN ADVANCE
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Old 10-04-2013, 10:17 PM   #19
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I can't tell if your being serious lol.
He is being serious. Im new to miatas and megasquirt.... However this is the absolute best reading you can possibly get for AIT.
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Old 10-05-2013, 12:27 PM   #20
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The local you bought it from . . . did he build it? Or does he know who did?

The only way to shortcut this is to get the person who knows the car to help you . . . and you will be remoding the OEM harness to add back all the custom features.

Either that, or you need to get back to stock and remod incrementally.

No matter what you do, make sure you do a quality job when remoding and create a wiring diagram for yourself and the next guy describing everything that's been done. Even if you keep the car, you'll appreciate having that wiring diagram in a couple of years when you need to fix something.

BTW, it looks like it was built by someone who knew what they were doing. If you can just find that someone . . . .
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