Ok, I've searched and searched but nothing really answers what I need to know. I have a 2003 civic si 2.0
While I'm driving it pulls pretty hard until I get to 3-4k rpm, then it seems like it bogs down and starts popping from my CAI. I pulled the codes and its for bank 1 sensor 1 or something like that... Air fuel ratio sensor (o2 sensor)
1st question.. Will the o2 sensor cause it to bog down and pop and why?
2nd question.. Has anyone else dealt with this? And what was done to fix it.
I have not done a fuel pressure test or compression test just yet.I have Replaced the plugs.. And remove one injector clip at a time and they all seemed to affect the motor in the same way. I replaced the battery terminals, and checked the ground all looks good. I've also check for "visible" vac. Leaks.. Nothing that I can tell so far..
Vtech will kick in still... just isn't as powerfull as it should be.
Any constructive advice would be appreciated. If there is a thread about this somewhere else please direct me to that thread. Thanks guys

 

Any help would be great!! Need to get this fixed aspap! PLEASE!

 

Check your oil level and add a quart. Mine did something similar to this code wise.

 

Thanks will check and get back..