[snake52]

Hey guys


i Feel a hesitation from the car when i hit the gas pedal to accelerate and Early this year i change the spark plugs because there was like shaking while i drive then every thing a;right then i got MIL flash after 1 month the code was P0421 i think it's the CAT if it'the CAT i think of cutting the cat from the exhaust system and remove it from the exhaust system here were i live we dont have emission test or any thing but dose it harm the engine if i cancel the CAt from the exhaust system

thank you

 

[snake52]

Guys


i forgot about the oxygen sensor what i will do with it if i replace the CAT with straight pipe

 

[snake52]

you mean i will get the MIL light all the time for removing the CAT

 

[snake52]

dose it going to effect bad the car function like engine or electronic system like the ECM

 

[snake52]

And if i erase the code after i remove the cat dose it will come back every time i start the car or it will only come once and when i erase will be gone iam just worry not to miss up the car by removing the cat

What if i leave it like that does it will damage the engine

I am a bit confused

thank you

 

[snake52]

Hello

I tried to remove the material in side the CAT but the bolts look like the are welded to the Cat one of the bolt broke when i tried to remove it
is there any other why i just removed the bottom side the top all bolt welded to the Cat