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2003 Honda Accord Knock sensor check engine

Tiny
PRAKASH_G
  • MEMBER
  • 2003 HONDA ACCORD
  • 149,000 MILES
By computer screening I found bad knock sensor and I changed it next day. After changing the knock sensor, car is running more efficiently but still my check engine light is not gone. I am sure there is no problem with the knock sensor as I just changed new. Can I know why the check engine light is still on?

Thank you
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Thursday, September 5th, 2013 AT 5:23 PM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,173 POSTS
Have you reset the OBD 2 system with a scanner? Also, have you re-scanned the system to see if there is a trouble code stored that will identify where the problem is coming from?
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Thursday, September 5th, 2013 AT 5:44 PM
Tiny
PRAKASH_G
  • MEMBER
  • 3 POSTS
Yes I did and still shows same code of knock sensor. One of my friend told me that I may have to replace wire harness of knock sensor and it may be problem but I am not sure. My knock sensor is new and does the wire harness problems shows check engine light with same knock sensor code?

Thank u
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Thursday, September 5th, 2013 AT 6:04 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,173 POSTS
If the wiring to the knock sensor is damaged or corroded, yes, it will show as a bad sensor.
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Thursday, September 5th, 2013 AT 6:10 PM

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