I keep gettin this code and am wondering what others have done to cure it??? I'm runnin reg. octane fuel...I dont have access to a decent scan tool to see what the O2 sensors are doin,but bein this code showed up,I'm thinkin its the gas or I need new mini cats...which brings me to ...has anyone replaced theirs,is there an aftermarket y-pipe w/ or w/out the cats,maybe I could fab. one and relocate the sensors to a single high flow???

 

Catalyst System Efficiency Below Threshold (Bank 1) thats what that code means

 

Yea, I know the code discription,I just don't know why I'm gettin it...thanks anyhoo...just wonderin if anyone else has gotten this one repeatedly and what they did to fix it...

 

i just started getting that too...it is either the catalytic converter going out or the oxygen sensors...both cost about $300 to replace. from what i have heard, the truck will still run fine but you will lose some mpg's is all. when i get some money together i will take it somewhere so they can narrow it down to one or the other. also, from what i have heard is that about 70% of the time it is usually the catalytic converter and not the o2 sensor...hope this helps

 

i just had my cat replaced for free. fell under dodges warranty. didnt pay a peny. the emissions and computer are still under warranty on my truck. it goes to 80,000 miles i believe. i have 65,000 now. call your local dodge service dept and check if you think that the issue.

 

Unfourtunately, mine has around 110,000...and bought used...[:'(]


I goota look into gettin the y-pipe and after cat replaced with some perf. parts!!!
First I need to make sure thats whats wrong,although it's somthin I wanted to do anyway...

 

I have had this code for about 2 months now. I just hook up the scan tool and clear the code, and it stays off until i do a lot of city driving. I have not noticed that it cuts down my mpg's (still get about 21 hwy mpg.) I hae not replaced anything yet because it does not seem to be effecting the truck and i also don't want to spend the money i don't have to.

 

what type of a scan tool do you have to clear the check engine light? is it expensive? i dont want to go spend $200 on a tool when i could spend just a little more to actually fix the problem...thanks

 

Replacing your cat and O2 sensors will pay for your scan tool with returned MPGs.

 

hmmm, my cat was 60 bucks, it's a magnaflow. My 02 sensors are Borg Warner together they were 25 bucks on E bay. I paid 30 to have the cat installed.