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NA6 Miata Dies After Cranking
Posted: Sat Nov 27, 2021 8:15 pm
by slokart_mx5
Hello everyone, I'm very new to the tuning world and I'm having issues with keeping my car running after it cranks. I can get it to catch and idle for about two seconds before it dies out and I am unable to keep it alive with the throttle. I have tried comparing my cranking, base engine, and idle settings with a couple of other tunes but I have not had any success. I hope its something simple that I am overlooking.
Here is a video of a crank attempt
https://youtu.be/zcfLzjrNCcI
The log of that crank attempt
https://rusefi.com/online/view.php?log=448
And here is my current tune
https://rusefi.com/online/view.php?msq=754
Any help would be greatly appreciated
Re: NA6 Miata Dies After Cranking
Posted: Sat Nov 27, 2021 8:45 pm
by mck1117
Thank you for the good detail! I don't see anything immediately wrong with the tune or log. Are you still running the stock injectors? If so, I assume the car still runs properly on the factory ECU?
Re: NA6 Miata Dies After Cranking
Posted: Sat Nov 27, 2021 9:06 pm
by slokart_mx5
Thank you for the good detail! I don't see anything immediately wrong with the tune or log. Are you still running the stock injectors? If so, I assume the car still runs properly on the factory ECU?
Yeah, it's still on stock injectors and it ran fine before I pulled the stock ECU. The only note worthy "mod" I did with the stock ECU was advance the ignition timing to about 14 degrees BTDC.
Re: NA6 Miata Dies After Cranking
Posted: Sat Nov 27, 2021 10:24 pm
by mck1117
can you try and check ignition timing with a timing light? You may need to adjust the trigger offset if you've moved the CAS (and even if not, the position is not particularly well defined from the factory)
Re: NA6 Miata Dies After Cranking
Posted: Sun Mar 27, 2022 8:43 pm
by slokart_mx5
I meant to come back and post my fix but it has slipped my mind.
My issue ended up being that I did not have my fuel pump correctly jumpered at my AFM connector. I found the correct jumper configuration here under "wiring the peripherals"
https://trubokitty.com/#/installation
Re: NA6 Miata Dies After Cranking
Posted: Tue Mar 29, 2022 9:53 pm
by BeerMoneyMotorsports
Ill be fixing the lack of proper docs. Thank you for posting your resolution.