hey, does putting a high flow cat cause the check engine light to come on???

it just came on today(that i noticed anyway), is there anyway to check to see what the problem is without taking it somewhere to get it code read???

 

 

thanks so i guess i'll have to have it erased, hopefully it doesn't hurt nothing for the emmissions up here

and as for the pics i just bought a camera myself (kodak z650) should be in in a couple weeks, so i'll have pics then, maybe not with the car clean cuz thats when our snow is gonna start, and with snow comes lovely salt *ggrrrr!!!*

 

Autozone can read the code for you for free and reset it to

 

i'd have to go to the states for that, i think i might have someone up here than can do that for me

 

My cat clogged up at 70,000 miles and did'nt cause the check engine light to co,e on even though the car was just about undrivable by the time we figured out what was wrong and got it to the shop. I had the u bend delete dona as well as having a high flow cat installed along with a less restrictive resonator. The car is much quicker and the chech engine light has'nt come on since the mods to the exaust system. I believe you have another issue and it is'nt related to your exaust system unless it's the o2 sensor. Hope you don't have an expensive problem to fix. The last time I had the check engine light come on was due to fault emissions components which was an $80 fix....good luck with your ride.
Kenny