I need help ova here , I changed whole spark plug , knock sensor and oxygen 2 before the cat. I had a code came up 305 obviously i replaced everything but the engine light is still on also it says another code i forget what was the number but it says I might need to replace EGR or theres misfire somewhere however the car runs smooth and everything is good. I dont know what else to replace it.

 

did u reset the CEL

 

yup , i tried to reset the CEL and everything else .....I'll go to autozone and find out what was the code number again. sorry for not being that much help cuz i m worn out workin on my car all day.


yup the tranny fluid is brown so it might be one of em ? thanks