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What is to much TPS Voltage and Whats Not enough TPS Voltage?

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Old 11-25-2010, 10:58 AM
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Question What is to much TPS Voltage and Whats Not enough TPS Voltage?

Ok I am trying to dial in my IAC by opening up the Blade with the screw on my 90 mm TB ,But by doing so I have .65-.67 Idle Voltage but got 4.5 Volts @ WOT.I tried opening up the TPS holes to lower voltage at Idle get it set to .47 volts and WOT is only 4.2 Volts.
Is .65 volts ok or is it screwing things up?I run Open Loop only ,Closed loop turned off...TIA
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Old 11-26-2010, 11:25 AM
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there is no too much from my point of view. You can adjust the low limit by tuning, I can tell you how via Efilive or Hptuner.

Last edited by odd boy; 11-26-2010 at 11:26 AM. Reason: add notification
Old 11-26-2010, 11:44 AM
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Originally Posted by odd boy
there is no too much from my point of view. You can adjust the low limit by tuning, I can tell you how via Efilive or Hptuner.
Oddboy How do you do this with HP Tuner?
Old 12-02-2010, 04:48 PM
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I have the same question. I'm doing some tuning & tried to open up my set screw a little. When I do, my TPS voltage reads higher than .6. The tuning guides say to keep it between .4 & .6 at 0% TPS. How can I adjust the blade out a little & reset the TPS voltage to get it back down at 0% TPS? Or is it okay if it's up in the .65-.70 range?
Old 12-02-2010, 05:03 PM
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Originally Posted by osuhog
I have the same question. I'm doing some tuning & tried to open up my set screw a little. When I do, my TPS voltage reads higher than .6. The tuning guides say to keep it between .4 & .6 at 0% TPS. How can I adjust the blade out a little & reset the TPS voltage to get it back down at 0% TPS? Or is it okay if it's up in the .65-.70 range?
Yeah Oddboy never came back to tell how to do it with HPtuner ,that's odd LOL.I have read we don't want to have anymore than .55 at Idle or the pcm won't use the Idle tables.To reset your TPS to 0% is unplug your TPS and turn your key to the run position but don't start the car.Leave Key on for at least 30 seconds turn key off and Plug TPS back in all done...
Old 12-02-2010, 05:07 PM
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Oh I also forgot to tell you I slotted the screw holes (made them bigger) and brought my TPS Voltage back down to .55 volts at Idle ,but I only have 4.35 Volts at WOT ,I do not know if this is ok,But I do have 100% and the Blade is all the way open




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