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Old 05-23-2016, 07:19 PM   #1
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So i replaced my spark plugs the other day and I went to fix the tach problem on my miata(95M and COP) in MS and while the car was running, I was in the ignition setting options(I know that isnt the right place to be). I was looking thru and somehow changed something and all of sudden the car shut off and wont start now. Anyone have any idea what happened and why. I have changed alot of the settings to see if that was the problems

Car 95M Turbo with Fab9 Cop and MSPNP2
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Old 05-24-2016, 12:47 PM   #2
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pull up an old tune and compare to the current tune. difference will be hilighted
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Old 05-24-2016, 01:38 PM   #3
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Spark output should be "going high" and you should NOT be running with ignition fixed at ten degrees, change it to use the spark table.



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Old 05-25-2016, 08:26 PM   #4
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So I tried to put the old tunes in and still no luck. I checked all the fuses, checked for fuel, checked spark all good. Just nothing. Any other thoughts?
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Old 05-27-2016, 10:54 AM   #5
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Please post a copy of the tune that's in there and a data log of an attempted start.
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Old 07-24-2016, 06:51 PM   #6
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Here are a couple datalogs. Any ideas will help
Thanks Ross
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File Type: zip miata logs 7.24.16.zip (8.3 KB, 7 views)
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Old 07-26-2016, 09:17 AM   #7
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It's not seeing RPM. It would help if you also posted the MSQ file so I can check if there are any settings that would prevent it from reading RPM. Also, check the CAS wiring.
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Old 07-27-2016, 05:37 PM   #8
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Here you go. It is reading the Tach now.
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File Type: msq CurrentTune.msq (83.9 KB, 47 views)
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Old 07-28-2016, 09:42 AM   #9
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Your coolant temperature is showing freezing. Check the sensor, wiring, and calibration.
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Old 07-28-2016, 11:11 AM   #10
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Quote:
Originally Posted by Matt Cramer View Post
Your coolant temperature is showing freezing. Check the sensor, wiring, and calibration.
I have an aftermarket coolant temp gauge, that is not running to the MS. I didn't have any issues before with this setup.
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Old 08-01-2016, 10:47 AM   #11
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Quote:
Originally Posted by 95Mmiata View Post
I have an aftermarket coolant temp gauge, that is not running to the MS.
A separate temperature gauge does not give your MSPNP the ability to start the car without a properly functioning coolant temperature sensor signal.
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Old 08-01-2016, 06:32 PM   #12
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OK so i have the sensor still in, that goes to the ECU. I hooked up the aftermarket gauge to where the temp sensor goes to the dash board. Ill check the temp sensor going to the ecu. Any other ideas?
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Old 08-01-2016, 07:51 PM   #13
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Fixed coolant temp sensor. Here are the new datalogs.
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Old 08-02-2016, 10:06 AM   #14
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OK, one problem down. Next check fuel pressure.
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Old 08-03-2016, 05:49 PM   #15
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Isn't that what the fuel load gauge show on the MS, good fuel pressure?
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Old 08-03-2016, 10:43 PM   #16
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72psi on crank
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Old 08-04-2016, 09:26 AM   #17
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That's way too high.
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Old 08-04-2016, 09:51 AM   #18
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Are you confusing fuel load for fuel pressure? Fuel load is map pressure in a speed density setup.
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Old 08-04-2016, 10:44 AM   #19
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Quote:
Originally Posted by acedeuce802 View Post
Are you confusing fuel load for fuel pressure? Fuel load is map pressure in a speed density setup.
I probably am. Anyways i tested to the pressure

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Old 08-04-2016, 10:46 AM   #20
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Quote:
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That's way too high.
Ok I tested the line that runs to the front of the fuel rail closet to the front of the car. Im assuming that it correct.

What do i need to do to fix the pressure?
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