Need help with CA smog...

[Nick410]

Okay, so here's my situation. I can't pass the CA smog test. I know right? Here we go again with smog. Well believe me, I've searched almost every forum I could think of, google'd my situation and basically followed what some people have done with no good results. Keep in mind, I think I'm borderline passing. Anyway, on with it.

It seems that I'm running rich, but can't seem to figure out the cause. No check engine light. All sensors are working fine scanner wise and performance wise. I also retarded my timing a little from 20 BTDC to 18-19 BTDC and use 87 octane from Chevron. My tag expires at the end of the month and I'm desperate for any solution...I would appreciate any help. Thanks.

Car
1995 S14 w/ stock KA24DE. 209k+ original miles and engine. Manual Trans.

Results
15 mph "Pass"
HC: MAX 61ppm, AVE 34ppm, MEAS 35ppm
CO: MAX .52%, AVE .05%, MEAS .33%
NO: MAX 493ppm, AVE 170ppm, MEAS 17ppm

Also, I got lucky with this pass. Went back and the numbers went up a little on the ASM diag run and failed.

25 mph "Fail"
HC: MAX 37ppm, AVE 21ppm, MEAS 63ppm
CO: MAX .50%, AVE .05%, MEAS .43%
NO: MAX 516ppm, AVE 158ppm, MEAS 104ppm

Parts I've Replaced
-EGR Valve
-BPT Valve
-EGR Temp Sensor
-EGR Solenoid
-All 4 Injectors
-Spark Plugs
-Spark Plug Wires
-Upstream O2 Sensor
-Upstream & Downstream Cats
-Vacuum Lines behind the head and block

Additives/Chemicals/Fluids Used
Techron (on different fill ups)
Seafoam
Fuel Injector cleaner (some old brand I found at work)
Water

[ZenkiKid]

try running it with less than a quarter tank, at least 2 bottles of ISO HEET, and over inflate your rear tires.

also heat up the cat as much as possible prior to the test.

[Koukiii]

Feel so bad for the nightmare you Cali guys have to go thru with cars. Good luck!