95Mmiata

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

dr_boone

iTrader: (1)

pull up an old tune and compare to the current tune. difference will be hilighted

deezums

iTrader: (3)

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.

95Mmiata

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?

Matt Cramer

Please post a copy of the tune that's in there and a data log of an attempted start.

95Mmiata

Here are a couple datalogs. Any ideas will help
Thanks Ross

Matt Cramer

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.

95Mmiata

Here you go. It is reading the Tach now.

Matt Cramer

Your coolant temperature is showing freezing. Check the sensor, wiring, and calibration.

95Mmiata

I have an aftermarket coolant temp gauge, that is not running to the MS. I didn't have any issues before with this setup.

Matt Cramer

A separate temperature gauge does not give your MSPNP the ability to start the car without a properly functioning coolant temperature sensor signal.

95Mmiata

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?

95Mmiata

Fixed coolant temp sensor. Here are the new datalogs.

Matt Cramer

OK, one problem down. Next check fuel pressure.

95Mmiata

Isn't that what the fuel load gauge show on the MS, good fuel pressure?

95Mmiata

72psi on crank

Matt Cramer

That's way too high.

acedeuce802

iTrader: (1)

Are you confusing fuel load for fuel pressure? Fuel load is map pressure in a speed density setup.

95Mmiata

I probably am. Anyways i tested to the pressure

95Mmiata

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?