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(TPS) Throttle Positioning Sensor

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Old Aug 28, 2007 | 12:43 PM
  #1  
89mustangfive0's Avatar
89mustangfive0
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Default (TPS) Throttle Positioning Sensor

Hey guys, i had a question. I own an 89 Mustang gt hatch. How would i know if my TPS was no good? What would the car do if it was no good? I think mine is no good. Thanks
Old Aug 28, 2007 | 12:44 PM
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Default RE: (TPS) Throttle Positioning Sensor

I think it's "no good ". jk. Check the voltage. One lead to a ground and one lead to i think the green wire. I beleive it should be around .95 to .99. I am sure someone knows the correct readings you should have.
Old Aug 28, 2007 | 12:46 PM
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Default RE: (TPS) Throttle Positioning Sensor

Thanks for the help buddy
Old Aug 28, 2007 | 12:50 PM
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Default RE: (TPS) Throttle Positioning Sensor

ORIGINAL: 89mustangfive0

Thanks for the help buddy
I edited my post, dont know if you saw it before you responded.
Old Aug 28, 2007 | 01:11 PM
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Default RE: (TPS) Throttle Positioning Sensor

think its .5-.98
Old Aug 28, 2007 | 01:19 PM
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Default RE: (TPS) Throttle Positioning Sensor

Just check the cover sheet for the TPS report. Simple enough.
Old Aug 28, 2007 | 01:23 PM
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Default RE: (TPS) Throttle Positioning Sensor

=) Thanks guys, ill check it in a bit.
Old Aug 28, 2007 | 02:25 PM
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Default RE: (TPS) Throttle Positioning Sensor

yeah its set for .998, how would you know if the tps is bad?
Old Aug 28, 2007 | 02:45 PM
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Default RE: (TPS) Throttle Positioning Sensor

symptoms may include hesitations while pushing down on accelerator if there were spots on the tps that register opens....simple enough to know you can run a koeo/koer test which will test the integrity of the sensors/system after that you can check the tps ground and 5 volt reference wires to make sure your getting supply to the sensor and after that you can back probe the signal return wire and with a multimeter set on volts slowly open the trottle plate and look for a smooth rise in voltage readings and if it goes to opens in some spots ...you'll know you have a problem.......ARE YOU HAVING A DRIVABILITYPROBLEM WITH THE CAR????
Old Aug 28, 2007 | 04:24 PM
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Default RE: (TPS) Throttle Positioning Sensor

I've been trying to time the car at 14 degrees but it won't run right. I set the tps at .998 and when i take off it kind of hesitates a little. when i start the car up the idle bounces a lot. I think that problem is the Idle air control motor though. Thats another story. Thanks for everyone's help reguarding my issueI really appreciate it guys.



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