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MS3x - Cranks but No start (Settings issue) 01 VVT Turbo Build

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Old 05-24-2017, 05:18 PM
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Default MS3x - Cranks but No start (Settings issue) 01 VVT Turbo Build

Having issues getting my miata to start. I got it running on the base map, and was able to sync the timing. I then found an oil leak so turned the car off to address it and now a few days later I cant get it to start.

Ive tried creating a new project and starting over in tunerstudio to no success.

Attached is a datalog of me cranking it and my MSQ.


Thanks for the help.


Also, im aware I have VVT turned off as thats the only way I could get it to start.
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2017-05-24_17.07.05.msl (386.8 KB, 84 views)
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Old 05-25-2017, 06:51 PM
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You have no crank signal so this thing is doing nothing. I can see where you were cranking it by the batt volt dropping but nothing showed up on the data.

For grins and giggles, set the output of the VVT solenoid and the IAC valve to the same frequency. I know you have it turned off but in the off chance they are on the same output channel this may cause a conflict that may not let the car start. It happened to me the other day as I was goofing around with my settings.

Also, get a composite log of the cam/crank sensors. And did you adjust the cam or crank pot by Brains instructions?

Edit: looking at VVT settings, it appears to be on. I would try changing the IAC valve freq to 383hz like you have the VVT solenoid and see if you get crank signal.
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Old 05-29-2017, 09:24 AM
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Thanks for the tips. Turned out it was my timing settings being completely off. Ive got the car running again.
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Old 10-27-2018, 12:20 AM
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Curious to see what the issue is. Mind going into more detail?
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