2003 HONDA ACCORD KNOCK SENSOR CHECK ENGINE

  • Tiny
  • prakash_g
  • 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

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

3 Answers

  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,410 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

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
  • Expert
  • 68,410 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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