2005 Civic SI P0135 error code
 

I replaced the sensor and reset the comp. Light went off till i drove about a block away. Sensor was OEM, no idea where to look from here... Was planning on trading in my car next weekend need help!

Re: 2005 Civic SI P0135 error code
 

If you have a hatchback you're in the wrong forum. You need this forum: https://honda-tech.com/forums/acura-rsx-dc5-honda-civic-ep3-32/ Most of us don't have manuals for the EP3.

You'll need a multi-meter to diagnose so, be prepared.