Here's the situation: I have a 99 si with toda spec b cams and internals, mugen ecu, wired up obd1, no cat and fail emissions. I turned my fuel way down on my vafc and ran with a SOHC civic obd1 ecu (p28) and passed cruising but failed idle for hydrocarbon. passing is 220 and i put out 309. any ideas on what to do with out paying to have a cat welding on? ....Im runnin a straight pipe right now.

 

go to napa and get a cat...spend the 20 bucks to have 2 flanges welded to each end of it and bolt it on..then pass emissions ..cats from napa are 80-100 bucks depending on size

 

i had the same problem, to pass low speed i turned up my idle to like 1000 rpms and went to autozone and bought this **** "berrymans pass emissions" and that helped burn off the hydrocarbons at idle. when i first did the test i was at 318 then with these to things i got it down to 201. i think turning up the idle helped out the most Good luck and that should work for you

 

00 FBP ITR.....SO CALI: Got Smog? I do. PM me.

i saw that... thought it might help, PM him y0!

 

your going to need a cat to pass and make sure you get it good and hot before the test.

keith

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by kwil6666 &raquo;</TD></TR><TR><TD CLASS="quote">your going to need a cat to pass and make sure you get it good and hot before the test.

keith </TD></TR></TABLE>

i didnt have a cat and i passed

 

If I was inspecting your car you'd never pass - you are lucky and should be grateful they even ran it on the machine, what with OBD-1 and no cat.

Get a cat and you'll be almost guaranteed to pass. My 2000 Si puts out 0 emissions in both tests.

 

He should feel lucky he isn't in GA where you have to pass OBDII. No other test is allowed for 96 and newer vehicles.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Grip Driver &raquo;</TD></TR><TR><TD CLASS="quote">go to napa and get a cat...spend the 20 bucks to have 2 flanges welded to each end of it and bolt it on..then pass emissions ..cats from napa are 80-100 bucks depending on size</TD></TR></TABLE>

That's funny you suggested this because I just decided I wanted it done and didn't wanna fus with anything. I went to Napa and picked up a universal cat for 93 after taxes and am having it welded on mon. by my friend's bro. I came home and checked this post to see the replies and that's what i did. I'll let you know how the results are.. I dont think i'll have a problem