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1998 Chevy S-10 failed emissions test

Tiny
JD70CHALLENGER
  • MEMBER
  • 1998 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 140,000 MILES
The fault codes are

p0452 evap control system pressure sensor low input

P0453 evap control system pressure sensor high input

can you tell me what I should look for or what part or parts maybe I should replace?
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Wednesday, February 6th, 2008 AT 1:32 PM

3 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
You will need a scanner to monitor the voltages for the sensor. It ison top of the fuel tank. COuld just be a bad sensor. Any previous work or anything done to the truck?
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Thursday, February 7th, 2008 AT 11:55 AM
Tiny
JD70CHALLENGER
  • MEMBER
  • 2 POSTS
Thanks for your reply no work done to vehicle. I do not have access to a scaner. Is it worth replacing the sensor even though I realize it's hunting and pecking?
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Thursday, February 7th, 2008 AT 2:22 PM
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Might be since it said both ranges were off on the sensor
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Thursday, February 7th, 2008 AT 5:58 PM

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