donut gasket that came with header, dosint seem like it fits good with cat. thers a good size gap when cat is bolted, and the cat is a little slanted. do i need that gasket? what should i do?

 

so i made it so it dosint tilt down, i used a box to hold it up so it has an epual fit around the donut. but is this space normal?



I hope somones on friday night to help me!!!lol

 

so u hook up the o2 sensor's and the check engine light is still on. do i need to drive it around, or could it be the donut gasket?

 

try resetting the ecu

 

ya reset computers memory.

 

what space? i see no space

 

how do i reset ECU?

In the pic the donut gasket is showing is that normal? the gap between the cat and header Thats what i mean space) i dont feel any air leaks around it.

 

Are you talking about the space between the two flanges? That's normal... the donut is sealing it fine.

remove the ECU fuse in the under hood fuse box for a few minutes, and then put it back in. start the engine and let it idle for like 5 minutes. then you're good to go.

 

to reset the computer just remove the memory fuse under the hood OR simply unhook one cable off the battery for a few mins.

 

Or you could disconnect the battery, either way will reset the ECU.

E*d*i*t - Damn, addiction beat me to it

Also, are you not using spring bolts for the header-to-cat. connection?