well car threw a code 23. knock sensor just got replaced and light still on meaning car still slow. any clues to what can be causing this?

 

Reset the ECU? Maybe it is knocking?

 

FROM THE FACTORY MANUAL
1. Perform ECU reset procedure
2. Hole engine at 3000-4000 RPM for 10 seconds
3. If code reapers check for short in KS wire ( Check continuity between ECU connector and pin D6 and body ground) YES Repair Short in Wire
4. If there is <U>NOT</U> continuity Check for an open in KS wire
Check for continuity between ECU connector terminal D6 and knock sensor connector. YES Repair open in KS wire
5. NO Subsititue with known good Knock Sensor

Hope this helps.
be careful when handleing the knock sensors their connections are very delicate and can easily lead to problems if not taken care of appropriotly.

 

Make sure its in there tight. On my B16 the knock sensor had a habit of getting loose and would throw a CEL.

 

we checked the lines and see no breaks in it. the light will go on after a few min of driving and off when i turn it off and back on. any more suggesitons would help.

 

Did you check the lines with a multimeter? That is really the only way to tell. The wire might look fine on the outside but it could be bad on the inside. Is there another ECU that you can try? Another knock sensor?

 

new knock sensor is in there.

 

Did you clear the code? If you need make sure its not knocking. Check timing etc etc. Make sure its tight. You make think it is, but its possible. Was it bought from Honda?

 

i reset the computer via dis. battery for a while.

 

ok, i'm going to run a new wire form the knock sensor into the ecu. any tips on this? i'll be using 12 volt prim. wire