Smog nazis strike again

[Craig 94 TA GT]

So I failed smog...again. The only difference between this and last time is my tune and a new O2 sensor. Here's the differences between the old and new tune:
CAT OverTemp
Target AFR
new = 14.7, old = 12.2
Minimum Coolant temp
new = 151.2, old = 85.25

Fuel
Injector size
new = 34.963, old = 39.841

Open loop afr vs load vs cool temp
new = 9.5, old = 8.3
new = 15.8, old = 14.6
(whole chart changed but that's just an example of the # differences)

Chassis
Hysteresis
new = 7, old = 5

So, will these items hurt the smog numbers?

Here are the new smog numbers (btw, the smog nazis changed the max limits so now if I get to my previous #s, I'll barely pass, unlike before, when I passed easily)

15 mph: HC: 68 (max 58), CO% 0.20 (max 0.34), NO 693 (max 483), CO2% 14.01, O2% 1.10.
25 mph: HC: 63 (max 34), CO% 0.13 (max 0.32), NO 586 (max 494), CO2% 14.01, O2% 1.02.

Old numbers:
15 mph (1794 RPM)
CO2%: 14.2
O2%: 1.07
HC max: 83
HC ave: 21
HC measured: 28
CO max: 0.48
CO ave: 0.06
CO measured: .12
NO (PPM) max: 689
NO ave: 150
NO measured: 410

25 mph (1740 RPM)
CO%: 14.1
O2%: 1.10
HC max: 48
HC ave: 13
HC measured: 33
CO max: 0.46
CO ave: 0.05
CO measured: 0.12
NO (PPM) max: 706
NO ave: 136
NO measured: 353

Thanks in advance for any help.

[FTA1995]

I think I remember talking about this with you last year...
I think you need to be a bit clever(not too clever unless you like fines) passing the smog. You might need to run a program that is made just for you to pass the sniffer. No it's not ethical, but most unethical remedies take the cake in a squeeze. I would try leaning it out a bit more and pull some timing, just keep in mind the dynamics of your cumbustion circumstance to keep your experimentation in a safe range.

[Craig 94 TA GT]

Thanks - I did already change it to last year's smog tune and will try again on Friday. I'll drive it a bit to get the BLMs settled. If that doesn't pass, then my only option is to do as you say with the tune, or to get an AFR on a dyno for part throttle. Otherwise, I guess I can go illegal and pay someone to pass it.

On another note, the beautiful hippy liberal state of CA only changed smog #s for '93-'95 LT1 automatics. The M6s remained the same as before. With the smog #s cut for the LT1, it's now easier for a 2007 Camry, Corolla, Lexus IS 250, Pontiac G6, LS1, LS2, etc to pass. Their allowables are higher for the exact same circumstances. I just don't get it. Someone either made a mistake or is trying to scrap all automatic LT1s. I wish I knew who it was.

[FTA1995]

all vehicles have to go through the sniffer out there, even the new models? Jeez in Chicago only obd2 has to undergo a quick data conversation, obd1 doesn't even get called in anymore...
Are getting sniffed and your PCM read at ge same time? You still might get past it if they don't tAke realtime readings of PCM switch status etc....

Goodluck I'm sure you'll get it to pass

[Craig 94 TA GT]

New cars have a smog exemption for the first 6 years. So I guess 2005s will be coming up on their first checks in a couple months.

The good thing about OBD1 tests is that there is no PCM connection with them - only a visual inspection and the sniffer. The bad thing is that it's such a long process to get it smogged because when I flash the PCM, I have to drive it for a while to set the BLMs, then take it in, pay another $40, get the readings, do it all over again. I'm not great with LT1 edit either, so I'm not even sure how much I can lean it out without increasing NOx. I guess the new program will tell how it's doing.

So here's a comparison of a 94 automatic LT1 versus newer car allowable emissions:
Model Year: 1994 Make: PONTIAC Model: FIREBIRD
Test Weight: 3750 (lbs.) Body Type: Sedan Transmission: Automatic
Cylinders: 08 Engine Size: 5.70 (liters) Fuel Type: Gasoline
VLTRowID: * 25892 LPFET Testable: **

ASM 5015 Standards***
Hydrocarbon (ppm) Carbon Monoxide (%) Nitric Oxide (ppm)
Fail 58 0.34 483
Gross Polluter 269 1.98 1907

ASM 2525 Standards***
Hydrocarbon (ppm) Carbon Monoxide (%) Nitric Oxide (ppm)
Fail 34 0.32 494
Gross Polluter 219 1.96 1707

----------------------------------------------------
Model Year: 2007 Make: HONDA Model: CIVIC
Test Weight: 3250 (lbs.) Body Type: Sedan Transmission: Manual
Cylinders: 04 Engine Size: 2 (liters) Fuel Type: Gasoline
VLTRowID: * 34262

ASM 5015 Standards***
Hydrocarbon (ppm) Carbon Monoxide (%) Nitric Oxide (ppm)
Fail 56 0.51 443
Gross Polluter 274 2.01 1930

ASM 2525 Standards***
Hydrocarbon (ppm) Carbon Monoxide (%) Nitric Oxide (ppm)
Fail 40 0.49 730
Gross Polluter 224 1.99 1730

---------------------------------------------------

Model Year: 2007 Make: HYUNDAI Model: ELANTRA
Test Weight: 3125 (lbs.) Body Type: Sedan Transmission: Automatic/Manual
Cylinders: 04 Engine Size: 2 (liters) Fuel Type: Gasoline
VLTRowID: * 34274

ASM 5015 Standards***
Hydrocarbon (ppm) Carbon Monoxide (%) Nitric Oxide (ppm)
Fail 58 0.52 451
Gross Polluter 275 2.02 1936

ASM 2525 Standards***
Hydrocarbon (ppm) Carbon Monoxide (%) Nitric Oxide (ppm)
Fail 42 0.50 738
Gross Polluter 225 2 1736

----------------------------------------------------------
Model Year: 1996 Make: TOYOTA Model: COROLLA
Test Weight: 2875 (lbs.) Body Type: Sedan Transmission: Manual
Cylinders: 04 Engine Size: 1.80 (liters) Fuel Type: Gasoline
VLTRowID: * 27432

ASM 5015 Standards***
Hydrocarbon (ppm) Carbon Monoxide (%) Nitric Oxide (ppm)
Fail 61 0.54 467
Gross Polluter 279 2.04 1952

ASM 2525 Standards***
Hydrocarbon (ppm) Carbon Monoxide (%) Nitric Oxide (ppm)
Fail 45 0.53 754
Gross Polluter 229 2.03 1752

----------------------------------------------
Model Year: 2002 Make: CHEVROLET Model: CAMARO
Test Weight: 3750 (lbs.) Body Type: Sedan Transmission: Automatic/Manual
Cylinders: 08 Engine Size: 5.70 (liters) Fuel Type: Gasoline
VLTRowID: * 30562

ASM 5015 Standards***
Hydrocarbon (ppm) Carbon Monoxide (%) Nitric Oxide (ppm)
Fail 51 0.48 419
Gross Polluter 269 1.98 1907

ASM 2525 Standards***
Hydrocarbon (ppm) Carbon Monoxide (%) Nitric Oxide (ppm)
Fail 35 0.46 706
Gross Polluter 219 1.96 1707