ls emissions :(

[egpower904]

Ok so my ls failed emissions. Only failed on no ppm, both tests. 1746 out of 1258 and 2008 out of 1378.

Ls block
Type r pistons
Stage 2 cams
Cam gears
Exhaust.

In an 88 crx si.

I zeroed out the cam gears and timing on distributor is advanced, it won't really idle if its in the middle. Is there anyway I can manipulate the cams via cam gear timing to make it emission freindly?

[RBS]

retard the ignition timing, it could be the cylinders are too hot.

[egpower904]

When I put the distributor timing even to the middle it barely idles (350-500). I was wondering if I could do something with the cam timing to help it out.

[RBS]

were the cams properly degree'd in?

[RBS]

wait, do you have a catalytic converter on your car?

[Bacon]

You failed nox?

[egpower904]

Yeah nox, it has a cat, and idk about cam install, they were advanced on intake cam and retarded on exhaust cam, I set. The gears to 0 and now it won't idle unless distributor is fully advanced, I don't understand the cam timign thing. I guess I'm looking for a rough estimate of where to degree the cams so that I can retard the distributor and chug this bitch through emissions lol. Thanks in advance :)

[egpower904]

Brand new egr valve too.

[Bacon]

Replace the cat.

[silversol]

Brand new egr valve too.

Since when does a ls motor have a egr valve

[EmminoDaGreat]

lol. retard the timing as much as you can, hope for the best.