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Low WOT TPS Voltage

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Old Jun 25, 2006 | 12:32 PM
  #1  
Twilightoptics's Avatar
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From: Seattle, Washington
Car: '87 IROC-Z/'82 RX7
Engine: SBC 355/1.1L Rotary
Transmission: T56/5 Speed
Axle/Gears: 4.33/3.93
Low WOT TPS Voltage

My closed TPS is fine, my WOT is only 3v. The pattern when opening the throttle is smooth and linear. I can change my WOT setting in the C950, but my question is.... is my TPS going bad? Bad already? or just a weird fluke that will be fine after I tell the ECM what WOT is?

Thanks
-Paul
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Old Jun 25, 2006 | 02:25 PM
  #2  
jstrdn90rs's Avatar
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From: Desert Heat
Car: 90 RS/90 Z-71/73 Vega
Engine: 3.1/5.7 TBI/5.7
Transmission: 700R4/700R4/350turbo
Axle/Gears: 3.23/3.42/3.42
You know..my TPS voltage was the same..but mine wouldnt go over 4 volts.I replaced it and rechecked it and did the same thing.So I was thinking maybe the throttle cable was stretching..Closed is about .5 and WOT is around 4.50 I think thats roughly for every TPS.If I mash the pedal into the floor board it will go higher but not much.
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Old Jun 25, 2006 | 10:33 PM
  #3  
Twilightoptics's Avatar
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25 Year Member
 
Joined: Feb 2000
Posts: 1,170
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From: Seattle, Washington
Car: '87 IROC-Z/'82 RX7
Engine: SBC 355/1.1L Rotary
Transmission: T56/5 Speed
Axle/Gears: 4.33/3.93
What about when you open the throttle blades 100% by hand? What does it read then?
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Old Jun 25, 2006 | 11:31 PM
  #4  
jstrdn90rs's Avatar
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Joined: Jun 2006
Posts: 503
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From: Desert Heat
Car: 90 RS/90 Z-71/73 Vega
Engine: 3.1/5.7 TBI/5.7
Transmission: 700R4/700R4/350turbo
Axle/Gears: 3.23/3.42/3.42
Good idea...I think it was the same ,but looks like tomorrow I will be checking that.I havent checked it with the new TPS in it..so cool thanks for that info.Then that would give me a better idea on the cable.
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