[Success Story] My 2001 Mazda Miata [Hellen]

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Nightsknight45
Posts: 41
Joined: Thu Oct 28, 2021 2:31 am
Location: Tampa FL

Re: My 2001 Mazda Miata [Hellen]

Post by Nightsknight45 »

I had to go back to the drawing board on the throttle bracket and with some help from friends we had an update solution. It isn't perfect but it should save the cable from fraying hopefully. The bracket is more durable and we also include a larger bearing for the cable to ride on.
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Nightsknight45
Posts: 41
Joined: Thu Oct 28, 2021 2:31 am
Location: Tampa FL

Re: My 2001 Mazda Miata [Hellen]

Post by Nightsknight45 »

The revised setup also included some custom 90 mm velocity stacks that I got cerakoted this awesome blue color. With those new stacks fitted I was finally able to ditch those crappy ebay 70 mm stacks. I also wanted to fit a full filter to minimize power loss and protect my engine so I bought a pipercross option that thankfully fits. The fuel damper was in the way so that had to be relocated.
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Nightsknight45
Posts: 41
Joined: Thu Oct 28, 2021 2:31 am
Location: Tampa FL

Re: My 2001 Mazda Miata [Hellen]

Post by Nightsknight45 »

Here is the most recent tune of anyone is curious.

https://rusefi.com/online/view.php?msq=1421
Nightsknight45
Posts: 41
Joined: Thu Oct 28, 2021 2:31 am
Location: Tampa FL

Re: My 2001 Mazda Miata [Hellen]

Post by Nightsknight45 »

My vvt quit on my the other day. I was thinking the vvt solenoid may have just failed but I swapped it with another and I still don't have any vvt. I even swapped the vvt actuator to a KNOWN working one and still nothing. The solenoid reacts when I rev the engine as well. I don't know that else to look into. Anyone have any ideas??
Nothing seems out of the ordinary.

Datalog: https://rusefi.com/online/view.php?log=1240
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AndreyB
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Re: My 2001 Mazda Miata [Hellen]

Post by AndreyB »

Digital multimeter in voltage or frequency mode would tell if you electronics is attempting to do anything electrical on that wire.
Very limited telepathic abilities - please post logs & tunes where appropriate - http://rusefi.com/s/questions

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Nightsknight45
Posts: 41
Joined: Thu Oct 28, 2021 2:31 am
Location: Tampa FL

Re: My 2001 Mazda Miata [Hellen]

Post by Nightsknight45 »

I ended up testing the ECU on another 01 NB2 with 77k miles on it. The VVT did not work on that car as well. So I guess that means the ECU is at fault. Currently working on getting a replacement.
Nightsknight45
Posts: 41
Joined: Thu Oct 28, 2021 2:31 am
Location: Tampa FL

Re: My 2001 Mazda Miata [Hellen]

Post by Nightsknight45 »

The replacement ECU came in and vvt is working once again 🙏. The car is no longer an absolute pig over 25% throttle haha. Next on the agenda is to install some sweet new itbs from hummelink modifications. The cbr1000 setup will be going to a new home soon😭, it was a solid budget itb setup but I wanted to splurge on something nice.
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