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Check engine light stays on

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
It may take a while to duplicate the circumstances that put the light on but it will likely come on again.
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Thursday, February 21st, 2019 AT 5:08 PM (Merged)
Tiny
RCJKILROY
  • MEMBER
  • 1 POST
  • 2007 HYUNDAI SONATA
2007 Hyundai Sonata 6 cyl Front Wheel Drive Automatic

i have a 2007 hyundai sonata v6 the check engine light goes on and off so I bought an obd II tester that works with my car I tested it when the check engine light was off and it read that there was a fault but when I check to see the code it came up as n/a is it because the light was not on?
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Thursday, February 21st, 2019 AT 5:08 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Light or no light if its has a stored code/s in it -it will indicate on the reader-you must have erase it-
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Thursday, February 21st, 2019 AT 5:08 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
There is no sensor. The ecm is what monitors parameters and when a component is out of range it will set a code.

Roy
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Thursday, February 21st, 2019 AT 5:31 PM

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