jeremy_kokwk
Expert Class
Posts: 161
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posted June 05, 2007 05:02 PM
TPS setting.
i am currently using PCIII and last few weeks i had this stuttering from the bike at 4000 and 7000 rpm. So i fiddled with the TPS, but the stuttering problem is solved by replacing the crankshaft sensor. Right now at low rpm, street riding, the bike seems jerky compared to the time before i touch the TPS. i was wondering if i can use the PCIII software to catch back the correct TPS position when i last did my PC tunning. The old map is great so i tot it is a waste of money to remap the whole thing again.
  
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Texas12R
Zone Head
Posts: 545
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posted June 05, 2007 05:59 PM
 Edited By: Texas12R on 5 Jun 2007 19:00
Sure.....just plug in your cable turn on the ignition switch and look for the button on the
right side of the screen that will reset your tps.....then check your 100% open position.
And just so you are clear the engine doesnt need to be running 
I had read a post on someone doing the reset with the engine running....not me!!!!!
All this assuming you have the computer in your garage
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entropy
Moderator
Posts: 8671
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posted June 06, 2007 06:37 AM
i am no expert on this stuff, but i set my TPS without involving the PC3r
I just get it idling, set the idle where i want it.
shut motor off
put a voltmeter on the correct 2 wires of the TPS
turn on the key
loosen the 2 torx screws, and rotate the TPS until i see 1.084?? on the voltmeter
lock it down and assure i still have 1.084??
Good to go.
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ridgeracer
Pro
Posts: 1309
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posted June 06, 2007 08:33 AM
You should probably do both. First set the actual TPS sensor to 1.084 volts then reset it on the PCIII
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rgeorge
Expert Class
Posts: 220
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posted June 06, 2007 09:34 AM
+1
The service manual says to set the idle to 1000 rpm and then adjust the TPS to 1.084-1.086 volts.
The TPS signal is the middle wire - I think its yellow- that comes out of the sensor. The other two sensor wires are +5.00v and GND. I usually just tap into the middle wire and touch the other lead of the voltmeter to the bikes frame. Using the sensor ground would probably be more accurate though.
TPS sensors are very touchy and it can be frustrating to get the adjustment right. It will take some patience.
After you get the bike to factory spec; then you can define 0% tps for the powercommander.
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SpikeZX12R
Parking Attendant
Posts: 27
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posted June 06, 2007 11:03 AM
excuse me for me being not in the know but what is the TPS senor and where is it???
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ridgeracer
Pro
Posts: 1309
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posted June 06, 2007 12:40 PM
Throttle Position Sensor. Its on the right hand side of the throttle bodies just below the edge of the gas tank cover.
And yes the TPS is very touchy. You can see why if you look at the TPS fuel map for the ECU
Notice that the TPS input across the top is not linear and and half the map is just for the first 10% of throttle travel; 21.5 - 31.2%. The difference between the first and second throttle zones (21.5% and 21.9%) works out to only 0.02 Volts at the sensor.
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jeremy_kokwk
Expert Class
Posts: 161
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posted June 07, 2007 01:53 AM
wow great info guys, thx i guess i will try both ways.
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dougmeyer
Needs a job
moderated
Posts: 2713
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posted June 07, 2007 09:03 PM
Just follow the procedure in the manual. It is the correct way to set the TPS and then we all won't have to troublehoot it later.
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jeremy_kokwk
Expert Class
Posts: 161
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posted June 07, 2007 10:28 PM
I see but as i am the Fifth owner of the bike, i do not know if the previous riders adjusted the TPS before i send it in for tuning.Anyway i ask the mech who dyno tune the bike for me and ask him about getting the correct TPS position with the PCIII software and he say it is a simple task.Well will update here if i managed to solve it.Thx!
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dougmeyer
Needs a job
moderated
Posts: 2713
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posted June 08, 2007 03:07 PM
Edited By: dougmeyer on 8 Jun 2007 16:10
It doesn't matter how it was adjusted before. It is simple but very important that you get it right at this point.
There is a difference between setting the Idle and 100% open positions on the PC software and properly setting the TPS position on the bike. These two procedures accomplish two different things. GET A MANUAL and follow the procedure in the book, which is basically ENTROPY'S as noted above, but the book has pictures.
Doug
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