C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Weird half throttle dull spot

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Old Oct 29, 2004 | 11:33 PM
  #1  
96zride's Avatar
96zride
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Burning Brakes
 
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From: Bremerton Wa
St. Jude Donor '04 &'05
Default Weird half throttle dull spot

Car runs and idles fine, everything checks out good. At full throtte car is great at 1/4 throttle car is great at mid throttle feels like a miss or flat spot once you push past it is fine. 1991 L98 auto.
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Old Oct 30, 2004 | 12:33 AM
  #2  
Mo_Bandy's Avatar
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From: Fremont Oh
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I venture to say that your throttle positioning switch is probably going bad... (TPS) they are like a variable resistor and since most of the motion is in the mid part of the switch it's probably getting worn out...

If you disconnect it and put an Ohm meter across the terminala and move your throttle the readings should be very smooth, it is seems erratic then that is the culprit...

mo
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Old Oct 30, 2004 | 11:57 AM
  #3  
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Jloshotz
Burning Brakes
 
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From: Long Island New York
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Originally Posted by Mo_Bandy
I venture to say that your throttle positioning switch is probably going bad... (TPS) they are like a variable resistor and since most of the motion is in the mid part of the switch it's probably getting worn out...

If you disconnect it and put an Ohm meter across the terminala and move your throttle the readings should be very smooth, it is seems erratic then that is the culprit...

mo


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Old Oct 30, 2004 | 09:29 PM
  #4  
96zride's Avatar
96zride
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Burning Brakes
 
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From: Bremerton Wa
St. Jude Donor '04 &'05
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Tis bad, ordered a new one today, just got a napa one for now. Because it will get here quiker than the dealer.
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Old Oct 31, 2004 | 06:29 AM
  #5  
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85blkrose
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From: berwick pennsylvania
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got the same problem. have to check it out and replace if needed. i love this place, lots of good info
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