t.p.s. calibration?

davidgboy

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was hoping some one could tell me how to calibrate the t.p.s. plan on installing an updated one. noticed the screw heads were a special torx design. is there a socket u can buy "locally" to remove them?
 

and usually they run off a voltage 0 to 5 volts well thats how it is on my yfz 450 anyway. i dont know the excact spec to set the tps on the sleds tho. but i do know that the tps,s work just like a potentiometer does.
 
thanx andrew k. i suppose i could replace those with some allen screws if i get the torx ones out with some vice grips seeing i may never need it for anything again. yes i have calmed down from yesterday. sorry about being snarly and childish. good therapy while it lasted.
 
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davidgboy said:
thanx andrew k. i suppose i could replace those with some allen screws if i get the torx ones out with some vice grips seeing i may never need it for anything again. yes i have calmed down from yesterday. sorry about being snarly and childish. good therapy while it lasted.[/QUOTE

I removed the tamper proof screws with vice grips and now have allen head screws securing the TPS for ease of adjustment.
The 2000 and up SRX shop manual has the TPS adjustment procedure in it.
 
hey s.s.bob thanx for the work u did last year concerning the t.p.s. and sharing your results. hope an updated one does the trick. are u suggesting that t.p.s. will require periodic adjustment?
 
davidgboy said:
hey s.s.bob thanx for the work u did last year concerning the t.p.s. and sharing your results. hope an updated one does the trick. are u suggesting that t.p.s. will require periodic adjustment?

Intersting you asked that question...I just checked my TPS last week and it did need a slight adjustment. It was a while ago and 1000s of miles since I last adjusted it.
 
hey s.s.bob thanx for the work u did last year concerning the t.p.s. and sharing your results. hope an updated one does the trick. are u suggesting that t.p.s. will require periodic adjustment? i downloaded required info. staggs had to edit request. hey how did u connect batteries physically in a practical sense? i was thinking of making a little wooden frame to hold batteries and threading in screws from each end to push batteries together and use alligator clips to connect to screws. i have some minature male connectors(dont have scrap coupler) should i get one?
 
Last week my sled was still running fine, I just checked the calibration and it was slightly out and I adjusted it back to specs...didn't notice ant difference this time.
When I used the batteries to test the sensor I just had them taped together. I now have a harness that I made and use. It actually plugs into the sleds wiring harness and the TPS with leads to hook the Multimeter to. I start the sled and use the sleds actual TPS voltage input[5 volts] to calculate abd callibrate the TPS setting while the sled is running
 
sideshowBob said:
Last week my sled was still running fine, I just checked the calibration and it was slightly out and I adjusted it back to specs...didn't notice ant difference this time.
When I used the batteries to test the sensor I just had them taped together. I now have a harness that I made and use. It actually plugs into the sleds wiring harness and the TPS with leads to hook the Multimeter to. I start the sled and use the sleds actual TPS voltage input[5 volts] to calculate abd callibrate the TPS setting while the sled is running

So now the question becomes how much difference does the TPS make on the actual performance of the sled?

Does it actually run better without TPS hooked up?
If so, how does it run better?
Better gas mileage?
More hp on a dino?
Any other performane noted without TPS?
 
If the TPS is functioning properly it adds additional timing at part throttle and should have no effect at full throttle.

In testing and replacing then calibrating the TPS on my 2002 SRX, a few years back, I found that at idle the TPS advanced the timing +5 degrees when plugged in and calibrated as compared to no TPS.

IMO the problem lies with a TPS that is malfuntioning and sending inconsistent voltage spikes to the CDI at various throttle openings...this would be far more problematic then having a miscalibrated, or no TPS at all.
 
hey monsterman thanx for info. i am hopeful that my baby will soon be sweet talking her daddy. not throwing her any biscuits yet though.
 
snoprokidf6 said:
http://www.youtube.com/watch?v=aEPx7OsywNk
Clearly explained.... only for a polaris, still pretty straight forward


I'm reminded after watching the video that before buying tamper proof torx bits I have used a small punch to break off the tamper proof tete that makes the screws tamper proof being careful not to bugger up the surrounding "teeth" of the screw the torx bit bites against. I caution that this was done on automotive components (specifically MAFS sensors) which were more accessable but thought I'd throw that out there.
 


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