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Post Info TOPIC: What is the minimal amount of sensors needed for spark?


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What is the minimal amount of sensors needed for spark?


I'm looking to try and turn the motor over this weekend to try and get the cam pin and crank trigger wheel in the right position with the scope and timing light. Im missing the ECT, air temp, clutch, and gps.  I was wondering if any of these will throw codes to not allow spark. Havent tried but figured id ask and see.. I tried to search but didnt really see anything for gen 2. Gps I can just ground the blue wire.



-- Edited by Yallgotboost on Friday 12th of October 2012 02:29:11 PM



-- Edited by Yallgotboost on Friday 12th of October 2012 03:09:05 PM

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Air temp you can flash out, coolant will need to be connected to at least a resistor (and if it is "cold" it may alter timing, I am not sure). Ths clutch signal will dertemine if it is in "clutch in or clutch out, but will still fire.

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Still waiting for my interface to be able to flash. Do you know what size resistor i can run on air temp and water temp.

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   If you dont connect the coolant temp sensor to anything it defaults to a fixed value in the ECU of 176 degrees F,  But wont stop it from sparking, 

  If you dont connect anything to the air temp sensor it defaults to 104 degrees  F  and it wont stop it from sparking

  If you dont connect anything to the gear position switch it defaults in to the neutral map  grounding the blue wire puts it in to the neutral map it will spark fine

  You will need to ground the clutch switch wire Black/Yellow to get the starter relay to activate and as long asit is grounded you will be in the clutch in map it will spark and run



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Hmmm. That is interesting Red, do you have any ocations in teh code where it shows the temp sensor going to default? My bike does not seem to operate well at all without the coolant sensor connected (had a faulty connector at one point).

If it is defaulting to 176°F, it should operate just fine. Could have been a conicidence that mine did not work well.

John

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Manual states the default value John , your big injectors may have exaggerated any fuel compensation for that value ???

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Maj750 wrote:

Manual states the default value John , your big injectors may have exaggerated any fuel compensation for that value ???


 Interesting. I wonder if it is putting everything into some "default" or "limp home" type of mode when one fault is found?



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   Hi,  Usually what I find when running an engine on my dyno if I run with the air temp sensor or without the water temp sensor and even the atmospheric pressure sensor disconnected the engine will run a little richer than normal but not like a full limp home mode,  I call it a safe mode,  Its kind of like running in the neutral map

 

  



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