Throttle position sensor output voltage lead? - Hyundai Genesis Forum
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post #1 of 21 Old 07-01-2010, 04:41 AM Thread Starter
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Question Throttle position sensor output voltage lead?

Need to tap it into the output voltage lead for the TPS w/a wire from my Zex kit. Where am I tapping into? Photos would be great.
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post #2 of 21 Old 07-01-2010, 10:04 AM
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Use a micro switch dont use the output wire its unpredicable and could cause a false reading. It also needs to be on the throttle pedal not the throttle body as the car is drive by wire it may not go to full throttle right away. It may also use full throttle when your not pressing all the way down.

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post #3 of 21 Old 07-01-2010, 10:59 AM Thread Starter
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Originally Posted by vcompton View Post
Use a micro switch dont use the output wire its unpredicable and could cause a false reading. It also needs to be on the throttle pedal not the throttle body as the car is drive by wire it may not go to full throttle right away. It may also use full throttle when your not pressing all the way down.
Thanks for the tip. Still need to know where the output voltage lead wire is that I need.
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post #4 of 21 Old 07-02-2010, 11:41 AM
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Register at hmaservice.com and all the wiring diagrams are there to email yourself or print out.

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post #5 of 21 Old 07-03-2010, 12:23 PM Thread Starter
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Register at hmaservice.com and all the wiring diagrams are there to email yourself or print out.

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THis is the only thing I could find for TPS, but I have no idea which wire I should be tapping into.
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post #6 of 21 Old 07-09-2010, 07:49 AM
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Looks like they have a redundant signal. Same for the accelerator pedal sensor too.

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post #7 of 21 Old 07-09-2010, 08:16 AM Thread Starter
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Originally Posted by Red Raspberry View Post
Looks like they have a redundant signal. Same for the accelerator pedal sensor too.
So which wire(s) should I tap into? I understand that I need the one that goes to 5 volts.

I can't bypass it with a microswitch b/c I'd still need a 5v source (Zex NMU) & this is the only one on the car AFAIK.
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post #8 of 21 Old 07-09-2010, 08:19 AM
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Either one it looks to me.

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post #9 of 21 Old 07-10-2010, 01:53 PM Thread Starter
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According to someone @ Zex, there should be 0v when there is no throttle & 5v when there is. I hit all 6 wires on the TPS connector w/my multimeter & 2 of them (black & white) have 0v no matter what & the others show the same voltage whether the car is getting any throttle or not.
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post #10 of 21 Old 07-10-2010, 01:54 PM
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The voltage will be ~.4V at idle and ~4.4v at WOT. You will not see these numbers and unless you are driving.

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post #11 of 21 Old 07-10-2010, 01:57 PM Thread Starter
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The voltage will be ~.4V at idle and ~4.4v at WOT. You will not see these numbers and unless you are driving.
Well I am not going to sit there & rev the piss out of the car while I check it. I don't have anyone to sit in the car & depress the pedal for me. Any other options for me?
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post #12 of 21 Old 07-10-2010, 02:02 PM
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It won't work at idle. You have to be moving and rowing the gears. You have a V6?

If so it is either the green or white wire.

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post #13 of 21 Old 07-10-2010, 02:17 PM Thread Starter
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It won't work at idle. You have to be moving and rowing the gears. You have a V6?

If so it is either the green or white wire.
Yes, a V6.
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post #14 of 21 Old 07-10-2010, 02:26 PM
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Sorry I did not see the section this is in.

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post #15 of 21 Old 07-10-2010, 08:07 PM Thread Starter
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Guess I'll play the trial & error game w/those 2 wires unless someone knows for sure which one it is.
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post #16 of 21 Old 07-13-2010, 04:48 AM
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Are you checking the sensor at the gas pedal or at the throttle body. The throttle body is a motor the drivers tps is on the gas pedal.

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post #17 of 21 Old 07-13-2010, 03:28 PM Thread Starter
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Originally Posted by vcompton View Post
Are you checking the sensor at the gas pedal or at the throttle body. The throttle body is a motor the drivers tps is on the gas pedal.
I was checking at the TB. Anyone have pics of where it is on the pedal?
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post #18 of 21 Old 07-13-2010, 03:50 PM
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I would think you want the throttle body TPS outputs. Not the accelerator pedal outputs. The throttle body does not always react to the pedal exactly.

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post #19 of 21 Old 07-13-2010, 05:24 PM
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the bad thing about dbw is throttle mapping. you may not always be at WOT when you have the pedal pressed down.

The nice thing about DBW is the Accelerator pedal position. Tap that.

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post #20 of 21 Old 07-13-2010, 05:38 PM Thread Starter
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Quote:
Originally Posted by socks View Post
the bad thing about dbw is throttle mapping. you may not always be at WOT when you have the pedal pressed down.

The nice thing about DBW is the Accelerator pedal position. Tap that.
Maybe if I knew what I was looking for down there
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