help passing emissions!

[oandy1010]

So pretty much I drive a 91 civic dx sedan with a b16a first gen, I gutted my cat, then moved to my hometown where I forgot I had to pass emissions. Here is what I got at the emissions test.. also they put me in as a 1.5 and I only drove like a mile after I got off work to get it done so the car was not hot at all.. thinking of welding a temp. Cat on, changing my o2's, and running some seafoam. Ideas? Need to pass soon

 

[oandy1010]

http://imageshack.us/photo/photo/534/imag0280r.jpg/


http://img534.imageshack.us/img534/9327/imag0280r.jpg

 

[RonJ]

Install a cat and do an ignition system tune up.

Any CEL codes?

 

[gugiey]

tune up and install new cat .

 

[oandy1010]

I did a full tune up about a thousand miles ago. After cat should I advance or retard timing? And would using regular gas instead of premium make a diff?

 

[RonJ]

What exactly did the tune up consist of?

Set the ignition timing exactly to spec -- red mark aligned with pointer.

Use regular 87 octane gas.

 

[oandy1010]

Well, I replaced my cat, did an oil change, changed spark plugs, used a can of seafoam, got my engine pretty hot before the test, and even put a little denatured alcohol in my tank. After all that my nox reasoned are still around 2000 and they need to be 1000.... What the Hell can I do. I have tried everything now

 

[RonJ]

Did you check the ignition timing?

Any CEL codes?

 

[oandy1010]

Okay so now iam desperate... Anyone know if installing an aftermarket exhaust will help? Cause I currently have a horrible self made exhaust... And it has a gap right after the headers.

 

[oandy1010]

Before that I think I should try my o2 sensors? Anyone have part numbers for a jdm b16a1 obd0?