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I have a P0122 throttle position sensor low curcuit.

Tiny
TAZZ0804
  • MEMBER
  • 1996 FORD E-SERIES VAN
  • 120 MILES
I have tried several new TPS.I also have voltage to the sensor(i don't know if it's the correct voltage).I also tried another ECM. What else could it be?
Saturday, March 3rd, 2012 AT 8:19 PM

5 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
So you have 5 volts to the sensor?Also your best bet would be to get a scan tool that reads live engine data so you can see what the tps is reading in the computer. There only like 54 on amazon.
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Saturday, March 3rd, 2012 AT 8:32 PM
Tiny
TAZZ0804
  • MEMBER
  • 4 POSTS
I have one wire that reads 0volts, another wire that reads 2.5volts, and the last that reads battery voltage(13.4volts).
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Saturday, March 3rd, 2012 AT 8:47 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
So do you have a scan tool that reads live engine data?Also what size engine do you have?
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Saturday, March 3rd, 2012 AT 8:55 PM
Tiny
TAZZ0804
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  • 4 POSTS
I do not have a scan tool at this time. It has a 5.8l 351w engine
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Saturday, March 3rd, 2012 AT 8:57 PM
Tiny
TAZZ0804
  • MEMBER
  • 4 POSTS
I have borrowed a scan tool from a neighbor, but I don't know if it can read live data(?)
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Saturday, March 3rd, 2012 AT 9:00 PM

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