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according to the manual the TPS resistance should be 1.1k ohms when close
4.4k ohms when open
STPS resistance should be 0.6k ohms when close
4.5k ohms when open
but i'm getting results for STPS 1.6k ohms when closed
TPS 2.1k ohms when closed
if i set the TPS to 2.1k Ohms u have have _C00 not -C00.
 

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Discussion Starter · #22 ·
according to the manual the TPS resistance should be 1.1k ohms when close
4.4k ohms when open
STPS resistance should be 0.6k ohms when close
4.5k ohms when open
but i'm getting results for STPS 1.6k ohms when closed
TPS 2.1k ohms when closed
if i set the TPS to 2.1k Ohms u have have _C00 not -C00.
my friend who has the same year 750 ran off his readings and this is what he got.

Upper closed: 1.48
Upper open: 5.14

Lower closed: 2.02
Lower open: 5.22
 

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Finally I found a man, who could tell me the real value of the STP sensor, when the secondaries are fully closed. I repaired my bike a whole day, and only in the 5th Suzuki service I found somebody, who could and wanted to help me.
In opposite of the service manual, you should meaure the voltage, not the resistance. And the voltage value should be 0.6V (if I remember good, there's a tolerance: 0.57-0.63???). They missed the unit, not the value. Of course you shouldn't disconnect the STP sensor coupler, only tht STVA coupler.
This 0.6V seems to me good, because it fits to the default factory value. And so the TP sensor's 1.1kOhm is 1.1V in natural position, which is true, you can find this value (1.125V) under the "Fast Idle Adjustment" part. And this is the value what I set with this "Dealer mode".
 
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