LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

check gauge light comes on at wot

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Old Aug 18, 2004 | 12:55 PM
  #1  
clownhair's Avatar
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check gauge light comes on at wot

When I floor my car the check guage light will kind of flicker a bit. What does this meen?
Old Aug 18, 2004 | 01:16 PM
  #2  
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Re: check gauge light comes on at wot

You'll have to get it scanned to know for sure, but is the car missing at WOT?
Old Aug 18, 2004 | 01:20 PM
  #3  
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Re: check gauge light comes on at wot

Most likely your TPS sensor, you're probably maxing out the voltage on the TPS, go outside with a volt meter, with key in ignition press the throttle to WOT & see the voltage, shouldn't exceed 4.5 or so volts.

Matt.
Old Aug 18, 2004 | 01:24 PM
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Re: check gauge light comes on at wot

When the check gages light comes on are any of the gauges acutally giving unusual readings, such as low oil pressure? Right beforei had to rebuild my engine mine did that - check gages would flicker at WOT and it was becuase my oil pressure was so <10 lbs.
Old Aug 18, 2004 | 01:37 PM
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Re: check gauge light comes on at wot

definitely get it scanned to narrow down the possible problems....it's the only nice feature on our cars, lol
Old Aug 18, 2004 | 01:42 PM
  #6  
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Re: check gauge light comes on at wot

Originally Posted by LWillmann
You'll have to get it scanned to know for sure, but is the car missing at WOT?
seems to be missing to me. There are no other lights coming on however.
Old Aug 18, 2004 | 01:46 PM
  #7  
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Re: check gauge light comes on at wot

Yes... if its really the "check gauges" light, it has nothing to do with the PCM, TPS, scanning, etc. Read your dash gauges for an indication.... oil pressure falling off, belt slipping and voltage falling off, excessive coolant temp, etc....
Old Aug 18, 2004 | 01:50 PM
  #8  
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Re: check gauge light comes on at wot

Correct me if I'm wrong but like Injuneer said , wouldnt the Missfire, or TPS out of range throuw a Check engine light, not a check gauges?
Old Aug 18, 2004 | 01:54 PM
  #9  
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Re: check gauge light comes on at wot

That is correct, I must have not paid close enough attention when I first read the post.

Sorry.
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