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2001 Hyundai Elantra error codes

Tiny
JAYNIEZ
  • MEMBER
  • 2001 HYUNDAI ELANTRA
  • 4 CYL
  • FWD
  • MANUAL
  • 101,000 MILES
I have a 2001 Hyundai Elantra with the check engine light on. I plugged a code reader in & it came up with codes 139 & 440. Any help would be appreciated.
Wednesday, April 16th, 2008 AT 4:31 PM

4 Replies

Tiny
D5NUKE
  • MEMBER
  • 61 POSTS
Code 440 is EVAP SYSTEM-Evaporative emission controls malfuntion

code 139 is O2 sensor circuit slow reponse
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Wednesday, April 16th, 2008 AT 6:27 PM
Tiny
JAYNIEZ
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  • 6 POSTS
Would replacing the O2 sensor be the fix?
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Wednesday, April 16th, 2008 AT 6:50 PM
Tiny
D5NUKE
  • MEMBER
  • 61 POSTS
Yes I would change the o2 sensor. They really cant be cleaned or any thing like that. Should not cost very much at all.
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Thursday, April 17th, 2008 AT 10:33 AM
Tiny
JAYNIEZ
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  • 6 POSTS
[quote="D5NUKE"]Yes I would change the o2 sensor. They really cant be cleaned or any thing like that. Should not cost very much at all.[/Quot

I really appreciate your help & time by the way. One more thing. From what I've been reading, there are 2 O2 sensors. Are they the same part, and which one should I try? Thanks again.
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Thursday, April 17th, 2008 AT 3:17 PM

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