Theres the question guys. Just installed my header, put o2 sensors back in place. Had a bit aof a problem though getting the down pipe and cat to seal. Got the problem fixed and hooked everything back up. My check engine light comes on now, but i got everything hooked up right. Help me out ppl, do i need to just reset ECU?

 

Im guessing mabey your O2 sensor is broken or it was installed wrong. But you never know, mabey sonemthing else is wrong that doesnt have to do with any work you just did. w/ the downpipe and cat seal that wont have anything to do with your check engine light.

 

See what code the engine is throwing. You can try and reset the ecu but if it comes back on see what the actual problem is. Like SOHC50shot said its most likely an o2 sensor thats bad or installed wrong.

 

Did you plug the o2 sensor back in?

 

yea, everything is plugged in, all sensors were fine before install. Sensors are bag in original places, maybe i just damged one of them. Hmmmmmm...

 

nobody can really help you figure out the problem until you figure out what code its trowing check this tread out https://honda-tech.com/zerothread?id=682412