Emissions retest another failure - Page 2 - ZR-1 Net Registry Forums

03-10-2009

Just to add some more info.

New plugs
New coils
New plug wires
Cats are new

Theoretically, this car should have no issues passing emissions. A couple of things in talking to Darryl.

AZ still uses the IM240 testing, which Oregon had and recently got rid of. Having a stock ZR-1 pass on them was getting tougher as the car was never designed to pass that kind of test, and they have also been lowering the passing limits here.

Second, if you have a jack rabbit operating the car on the dyno, it will fail.

Darryl is going to try the stock PROM and see where we wind up and go from there.

XfireZ51 · 03-10-2009

GC,

I doubt it's the DRM calibration. Tuners don't typically touch the Spark and Fuel maps in the area that involves part throttle cruise. I'll bet it's happening on decel.

GOLDCYLON · 03-10-2009

I really dont know at this point, Im trying to do the right thing with new cats and even a new o2 sensor. At this point im trying to determine a work around. Daryll

GOLDCYLON · 03-10-2009

Quote:

Originally Posted by tomtom72

You do have the A.I.R. system connected, right? Not sure if it makes a difference.

No I dont I was told the A.I.R. tubes was only there to preheat the cats upon startup does anybody know different for sure? Jeff Flint states thats the case, are there any other opinions?

I dont remember seeing a smog pump or an air pump on our cars beyond the electric air pump and the air dirverter valve on the drivers side right?

jonszr1 · 03-10-2009

jeff is right they are only for startup and shouldnt effect the test if the car is allready warm

GOLDCYLON · 03-10-2009

Well heres my course of action for tomorrow... Put the stock chip back in. Drive the snot out of it for about ten miles at 3000rpm before the test to get the cats nice and hot. Pull over and put in a gallon of denatured alcohol to about 1/3 -1/4 tank of gas, keep it at 2000 rpm while its is the test lane and then test it! Sound about right? GC

FU · 03-10-2009

Also turn the A/C on during the above and while being tested.

Good Luck

GOLDCYLON · 03-10-2009

Ahhh to strain the car even further ok Frank thanks for that idea I will. And turn it off before entering the booth. I will try to take a video of this run through the booth. Jeffvette is intriqued I think he just like to see punishing compliance in action. A few guys on the Grand National forum say they do this all the time to stick it to the man that the car is sputtering, surging and complaining so much that it freaks out the compliance nazis when they pass. I guess RONK was onto something here. Thanks for the help folks as always.

BTW
I just enjoy running the snot out of it too, especially with the Jeals as it barks like big dog now. I cant imagine what your sounds like Frank with that big motor. lol

PhillipsLT5 · 03-10-2009

Collector Ins in AZ= no test req
or
After failing x times and x $ in receipts you can get a waiver
You must be close to that
or contact Marc

1990 415 · 03-10-2009

the alcohol to use is methyl alcohol. when i bought my first ZR-1 from Frank Urbanati it had a Jeal 368 with no cats. i got that car to pass emissions with no cats on methyl alcohol. you have to basically get all the gasoline out of the tank and then put in a gallon of methyl alcohol for the emission test. once you pass the test fill her up with premium asap. the methyl alcohol is clean but the LT5 doesn't like it for too long. i was elated when i got the 368 to pass without any cats. good luck.

03-10-2009	#11
Jeffvette Guest Posts: n/a	Re: Emissions retest another failure Just to add some more info. New plugs New coils New plug wires Cats are new Theoretically, this car should have no issues passing emissions. A couple of things in talking to Darryl. AZ still uses the IM240 testing, which Oregon had and recently got rid of. Having a stock ZR-1 pass on them was getting tougher as the car was never designed to pass that kind of test, and they have also been lowering the passing limits here. Second, if you have a jack rabbit operating the car on the dyno, it will fail. Darryl is going to try the stock PROM and see where we wind up and go from there.

03-10-2009	#12
XfireZ51 Join Date: May 2007 Location: Chicagoland, IL Posts: 9,700	Re: Emissions retest another failure GC, I doubt it's the DRM calibration. Tuners don't typically touch the Spark and Fuel maps in the area that involves part throttle cruise. I'll bet it's happening on decel.

03-10-2009	#13
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: Emissions retest another failure I really dont know at this point, Im trying to do the right thing with new cats and even a new o2 sensor. At this point im trying to determine a work around. Daryll __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

03-10-2009	#15
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,407	Re: Emissions retest another failure jeff is right they are only for startup and shouldnt effect the test if the car is allready warm

03-10-2009	#16
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: Emissions retest another failure Well heres my course of action for tomorrow... Put the stock chip back in. Drive the snot out of it for about ten miles at 3000rpm before the test to get the cats nice and hot. Pull over and put in a gallon of denatured alcohol to about 1/3 -1/4 tank of gas, keep it at 2000 rpm while its is the test lane and then test it! Sound about right? GC __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

03-10-2009	#17
FU Join Date: Mar 2004 Location: Found Member Posts: 4,346	Re: Emissions retest another failure Also turn the A/C on during the above and while being tested. Good Luck __________________ Frank Urbo. NCM Lifetime member # 982 Registry Founding # 237

03-10-2009	#19
PhillipsLT5 Join Date: Aug 2005 Location: Scottsdale, AZ Posts: 2,452	Re: Emissions retest another failure Collector Ins in AZ= no test req or After failing x times and x $ in receipts you can get a waiver You must be close to that or contact Marc

03-10-2009	#20
1990 415 Join Date: Feb 2009 Location: Canada Posts: 309	Re: Emissions retest another failure the alcohol to use is methyl alcohol. when i bought my first ZR-1 from Frank Urbanati it had a Jeal 368 with no cats. i got that car to pass emissions with no cats on methyl alcohol. you have to basically get all the gasoline out of the tank and then put in a gallon of methyl alcohol for the emission test. once you pass the test fill her up with premium asap. the methyl alcohol is clean but the LT5 doesn't like it for too long. i was elated when i got the 368 to pass without any cats. good luck.