I resetted my ECU and cleared the error codes. I turned my car on and for a few days now no service engine soon light has came on. When I check my ECU it gives me a 5, 5 code meaning theres no errors. I know my Knock sensor and my Rear o2 sensor is bad. But will my car still run with a lower performance with a bad knock sensor even though the error code isnt showing from my ECU?

 

I did the samething and after the ECU gave me the 5, 5 code I tiruned the screw back counter clockwise n left it alone. Now when I drive my check engine light just keeps blinking at me. When I put it in park it doesn't blink, only when in drive...by any chance do u know how to stop that? thanks.

 

yeah turn it back the other way and it should take it off diagnostic mode, thats what i did and it worked

 

If this is happening in drive (under load) I want to say misfire. Does your car drive normal?

 

nah his car doesnt have a mis fire cause it repeats the code i know what he's talking about if he resets his computer and turns the dial to off take it off diagnostic mode the blinking will stop

 

bring it to autozone and use their scanner for free. a sort of "second opinion"

 

Gstrength you were right I didn't turn the screw far enough. All is well now. Thanks.