Contour Enthusiasts Group Archives Forums General Troubleshooting bypass air valve fix for 98 atx

Im having a tough time getting this right...

Right now I am using the 1/2" copper cap, and it has a 3/16" hole in it, and I do have a K&N homemade intake.

With this setup it still shifts a little rough, not as bad as without (which is terrible). However, it does eventually trigger the CEL. Ill pull the fuses and it will be okay for a couple days - two weeks.
I have tried quite a few diff. sized drilled holes, and it was working flawlessly without the intake. Then I had to change to a different size with the intake and I got it almost perfect. Then I thought the hole should have been slightly larger, but that was a bad idea.


How can I tell when the drilled hole is too big/small? Has anyone else had this tough of a time? Can I drill lots of extremely small holes until it works the best, or does it need to be one large hole?

Thanks for any ideas

TH fix has nothing to do w/ your cel.

hole size is determined by what's right for you.

anyone else, possibly someone with an atx v6?

i performed the fix. and it never seemed right, unless i went bigger, i think i had to go quite a few sizes larger than what is recommended in the fix. although i am having a problem with hesitation off the line. i am not sure if i went to big yet. i haven't payed with it again. i am just glad the moose has left the intake.