I have a 98 civic that had the factory exhaust mani crack on me. After weeks of searching and not able to find a replacement- i broke down and bought a 45 dollar ebay special stainless header.

The car is a daily commuter so i really dontneed that but i was tired of the exhaust leak noise.

Obviously i now have a CEL due to no CAT, how can i get rid of it. it was not on immediately but i get a P0420 code now.

and a few times randomly the car has just shut off while driving????? can anyone help on how.

nothing else has changed as far as gas milage.

please advise

 

bump for help

 

bump

 

bump

 

get an 02 eliminator. they sell them on ebay

 

thank you for the help, any other ideas?

 

thats all you need

 

got the part still getting same CEL and now car shuts off randomly while driving- no pattern, no sputter.........

please help

 

I have the same problem. I called Honda a couple of days ago and they told me that there is an extended warranty on the emissions systems. Call Honda and see if your car qualifies for the free service and they wil replace the exhaust manifold and O2 sensors. Honda of North America phone is 1-800-999-1009.

 

thanks for the advice- there is a recall on the ignition switch and its a free swap out
as well as free loor mats. LOL they are on recall.

 

so do you have both o2 sensors hooked up one in the header and one in the cat?

 

no -
factory manifold has the ca attached- it had a crack, one O2 goes before the cat and one after

new aftermarket header has no cat and 2 O2 holes, one up front and one near end of b-pipe

so there is not "one in the cat"