Got my gen2 in the basement running, found out something new about secondary injectors
- Thread starter smithabusa
- Start date
Very cool!
Thanks for taking the time to post up and share this info . . . this has filled in a few gaps in my technical knowledge on the fuel injection system of the Busa, it's interesting about the neutral position and the programmed loss of the upper injectors while in neutral, and the consequences of bypassing the clutch switch.
I also watched the Gen 1 vid you did which is more relevant for me as I have a '99 Gen 1.
Keep posting for the techies among us here!
Kiwi
Thanks! My wife just laughs, like why would you want to do this haha, never mention someone else actually interested.Very cool!
Thanks for taking the time to post up and share this info . . . this has filled in a few gaps in my technical knowledge on the fuel injection system of the Busa, also watched the Gen 1 vid you did which is more relevant for me as I have a '99 Gen 1.
Keep posting for the techies among us here!
Kiwi
+1 Interested
A flaking GP switch adversely affects the secondaries.
And that would be a practical application, in my case, as my GP switch flakes often
Gracias
A flaking GP switch adversely affects the secondaries.
And that would be a practical application, in my case, as my GP switch flakes often
Gracias
Mythos
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My GPS only flakes once when I first start the bike after storage then it's ok the rest of the season as far as I have noticed.
Why would you need secondaries in Neutral?
What does this all mean? Don't disable or remove engine sensors? I kind of thought I might lock mine in one gear map for AFR tuning someday. Don't do it?
Why would you need secondaries in Neutral?
What does this all mean? Don't disable or remove engine sensors? I kind of thought I might lock mine in one gear map for AFR tuning someday. Don't do it?
What I found relevant is the 2nd FI's relation to the GPS. If the GPS is not reporting the proper gear (like mine does), my 2nds may not be activating. Not sure it works this way, but Boost made me think it might
In nuetral you wouldnt really, but probably is under load when sensor flakes out and it sees neutral you go way lean, super bad on turbo bikes
Yes I was just illustrating a couple of ways that secondaries will stop working, one of them being a surprise to me (coolant temp sensor not functioning correctly)
michael parris heuberger
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Hi I would think that they would shut off if the bike goes into an over heat condition too.
possibly once I have some flashers built back up I will play around with gauge data going to look around
HEMI. 392
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My 08 busa needed 1power commander for primarys and 1 power commander for the secondarys then dyno tuned both. Huge difference
Ecu flash, no need for multiple devices, it controls fuel to all 8 together instead of completely separate
Just curious which sensors the ECU accesses in order to determine secondary activation. In another post I guessed it was TPS. True?
Yes tps, gear, coolant sensor
Burned up a couple rolla of labels LOL
Added an ebay ignition key, had to wore in the ignition resistor to make it work
Hayabusa Wannabe
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Extremely impressive testing @smithabusa. Know that there are plebeians out here that are super impressed with your work and your practical solutions.
Thanks
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