Failed Smog in Cali... advice please.

[5150DSM]

91 GSX- Manley pistons (8.5:1), manley rods, EVO8 injectors, EVO9 pump, MAFT, 3" turbo-back, FMIC w/piping, aftermarket filter. No problems on visual. (buddy hook-up) But the sniffer test didn't work out. Failed HC's at idle- measured 203ppm, max is 120ppm. Also failed CO(%) at 2500rpm, measured 5.8 max is 1.00. Fresh motor and head with about 30 miles on them. New plugs and wires, new cat (magnaflow 3").

Fuel was at 0 correction, just based for the injectors. Wideband says 14.3-14.8 at idle and 13.4-13.8 at light cruise. I adjusted the fuel after the test, -10% at idle and -5% on the mid knob. Idle AFR's are now in the 14.8-15.2 range and 2500rpm in neutral gets me 14.4-14.7. Do you think I've done enough or is there more correction that I should be looking for? I only have 2 weeks to get this thing smogged or I'll have to non-op it until I get it figured out.

Any advice would be helpful. Thanks all.

 

[5150DSM]

Forgot. EGR, cannister and the rest of the emissions gear is all present. Additionally, I failed on the gas cap, which I also replaced.

 

[Pipnorcali]

For the high hc you could try a new PVC valve and check for vacuum leaks and get that shit hot before you test it (1/2 freeway drive) .

Search around tons of info

failed smog dsm high co2 - Google Search

 

[5150DSM]

yeah thanks. I've searched and got all that info and it all makes sense. Just wanted to make sure I was on the right track and get some DSM specific experiences. I'll change the PCV right now and hope that the fuel corrections I made, along with a nice long drive does it.
Thanks again for any and all responses.

 

[5150DSM]

Passed today. With flying colors as a matter of fact. Replaced PCV and replaced the PCV lines. Fixed a vacuum leak from the boost gauge line. Dropped 5% fuel out of idle and another 10% out of mid and that did the trick.

 

[Calan]

Just replied to your other thread, but I guess the rebuild went fine?

 

[Pipnorcali]

nice glad it passed