supra5677
Pro
Posts: 1279
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posted January 28, 2012 11:56 AM
Ping Tuusinii or Red Rocket
Can someone tell me the voltage range of the apparent altitude sensor on the zx12r?
Thanks,
Supra..
   
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tuusinii
Pro
Posts: 1031
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posted January 29, 2012 02:55 AM
Hello!
It's the same sensor as IAP so it's 0-5 volts. About 3.6 Volts at sea level.
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supra5677
Pro
Posts: 1279
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posted January 29, 2012 08:40 AM
Ok..thanks...
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2000redrocket
Pro
Posts: 1662
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posted January 30, 2012 05:27 PM
 Edited By: 2000redrocket on 31 Jan 2012 01:31
mine is around there at 400ft. i usually check the altitude part of it by killing the engine after it is running a bit for the same input voltage all the time
just checked a log file and it is 3.63 to 3.71vdc
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supra5677
Pro
Posts: 1279
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posted February 03, 2012 05:53 PM
how much does the voltage increase per 400 feet?
supra
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2000redrocket
Pro
Posts: 1662
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posted February 04, 2012 06:49 AM
i tried to figute that out but shy of driving around with one i am not sure. my brother was going to make me a 5vdc power supply circuit when i was messing around with that but never did. my 4 nimh is 4.8v charged or so but as the batteries drop so does the iap sensors voltage also. i would of needed a higher than 5vdc supply .
i do know out ecu doesnot hold the 5vdc dead nuts on 5vdc and when it changes the iap voltage changes
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supra5677
Pro
Posts: 1279
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posted February 04, 2012 11:16 AM
I got it formula (vdc-.6) divided by .04
3.64 v = sea level
3.508 v = 1000 feet
3.38 v= 2000 feet
3.26 v= 3000 feet
0 to 1000 feet -.132v
1000 to 2000 -.128v
2000 to 3000 -.12v
3000 to 4000 -.112
etc roughly .12v per 1000 feet..
Range of map vs static map is numbers (roughly 26 to 255) altitude sensor has fuel adjustability to roughly 9.8% more or less fuel.
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2000redrocket
Pro
Posts: 1662
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posted February 04, 2012 02:12 PM
that would be close but the air density may play with that. nice stuff to know
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supra5677
Pro
Posts: 1279
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posted February 04, 2012 03:24 PM
i sent you a pm red rocket...
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