2003 Honda Accord Knock sensor check engine

2003 HONDA ACCORD
149,000 MILES
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PRAKASH_G
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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
Sep 5, 2013 at 5:23 PM
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JACOBANDNICKOLAS
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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?
Sep 5, 2013 at 5:44 PM
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PRAKASH_G
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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
Sep 5, 2013 at 6:04 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
If the wiring to the knock sensor is damaged or corroded, yes, it will show as a bad sensor.
Sep 5, 2013 at 6:10 PM
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