Hope you guys can help I need to fix it tonight?

2001 camaro z28 m6 106,xxx miles.

mods all bolt ons and a cam/valvtrain (springs, pushrods).

exhaust hooker lts and ory. Ive had this exhaust set up for over a year and never a problem, till now.


spark plugs are new and installed with CARE (ngk tr55)
wire are about 1 year old, taylor thundervolts

I just finished my cam install and just got the car back from be tuned. A day later it started throwing codes.

p0300 multiple random misfire
p1133 insufficient swicthing bank 1 sensor 1 (drivers side front o2 sensor)
p1153 o2 sensor circuit range/performance high


here is my question, can the front drivers side O2 sensor cause the car to misfire. I read on a odbII website that it can. Has anyone had this problem before and how does an o2 sensor cause misfire? Do to my mileage, is 100,00 0 when o2 start to fail?

 

also if it is a bad front o2 can I just use one of my rear o2 as a replacement. its not like i have cats anymore.. LOL

 

ah **** wrong thread!!!!

 

I think most people after a cam install have to change the misfire table. I know I did.

Bill

 

Can a slow switching 02 sensor cause misfire? short answer yes.

I've seen an 02 sensor stuck at 30mv, so your giving junk information to the computer that engine bank is lean and injectors need to be bumped up.

Liquid fuel can't burn, poorly atomized fuel can cause misfire, which leads eventually to plugs carbon foul and cause misfires.