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Old 03-29-2020   #11
-=Jeff=-
 
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Location: Bartlett, IL
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Default Re: Any new tips on passing smog test?

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Originally Posted by Corvettes White View Post
Jeff I need the money, and my kids are here. And I know of no place in the world with the weather.

George.
George, I hear you. I want to move from Illinois, but my kids are here and in HS and my job is here..

It is always easier said than done..

BTW George, how is the 89 coming along....
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Old 03-29-2020   #12
Corvettes White
 
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Default Re: Any new tips on passing smog test?

Jeff


Cleaning out garage the last few weekends to get back at it after a very very long delay.


Brett is helping with the body panels. Since this is a standard '89 being converted , a round tail light bumper is being sectioned and widened to fit wider body. New rear body surround and deck lid to match. Photos are of the molds.


And so that I do not hijack the thread, the smog sticker so I can get it to pass California Smog. The LT5 motor is listed in the California smog tech books for 1989.


Stay healthy! George
Attached Images
File Type: jpg BH Deck Lid 2.jpg (85.9 KB, 19 views)
File Type: jpg BH Deck 2.jpg (87.5 KB, 25 views)
File Type: jpg Smog Label 001.jpg (85.9 KB, 27 views)
File Type: jpg BH Rear Bumber 1.jpg (64.2 KB, 25 views)

Last edited by Corvettes White; 03-29-2020 at 03:54 PM.
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Old 03-30-2020   #13
DRM500RUBYZR-1
 
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Join Date: Sep 2008
Location: Mullica Hill, New Jersey
Posts: 2,592
Default Re: Any new tips on passing smog test?

I have been told bribery works well, but short of that do what others have said.
ditch the full power key
drive it harder than the typical babying to clean those cats.
get it hot before testing
pray
look at the stars
then if all else fails, move or register it elsewhere.
If everything is still correct and complete from an emissions perspective it should easily pass the "standards of the day of manufacture".
However some states require it meet current day standards, and those are tough for 1980's era technology.
Best of luck!
(in NJ we are lucky, no inspection of 95 or earlier)
While we might get nailed by Covid 19 at least we can legally drive our ZR-1's
Marty
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Old 04-01-2020   #14
Z51JEFF
 
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Default Re: Any new tips on passing smog test?

Well I passed the smog test,just barely. The max Nox level is 502 and it passed @473,this was with an open air filter,a little help from our friend in Indiana and I haven’t changed the oil in awhile. Thanks to all for the tips.
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Old 04-01-2020   #15
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Default Re: Any new tips on passing smog test?

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Originally Posted by Z51JEFF View Post
Well I passed the smog test,just barely. The max Nox level is 502 and it passed @473,this was with an open air filter,a little help from our friend in Indiana and I haven’t changed the oil in awhile. Thanks to all for the tips.
Congrats! I’m curious, what advice did “our friend in Indiana” (Illinois?) give you?
H
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Old 04-01-2020   #16
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Default Re: Any new tips on passing smog test?

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Originally Posted by Ccmano View Post
Congrats! I’m curious, what advice did “our friend in Indiana” (Illinois?) give you?
H

I'd heard that a certain "Specialist" had been working on a "Emissions Friendly" chip for us here in Smog Nazi land.
I've not needed one yet....yet.
That could change.


'Crabs
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Old 04-01-2020   #17
Z51JEFF
 
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Default Re: Any new tips on passing smog test?

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Originally Posted by Ccmano View Post
Congrats! I’m curious, what advice did “our friend in Indiana” (Illinois?) give you?
H
He -told- me about a smog chip he sells that -might- help with the smog test.😉
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Old 04-05-2020   #18
Paul Workman
 
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Default Re: Any new tips on passing smog test?

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Originally Posted by -=Jeff=- View Post
find a state without smog Nazis and move there
Yeah, I wuz gonna say that!
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Old 04-05-2020   #19
Z51JEFF
 
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Default Re: Any new tips on passing smog test?

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find a state without smog Nazis and move there
Yea,if only it was that easy,when I retire I will do just that.
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Old 04-08-2020   #20
dmaclennan
 
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Location: California
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Default Re: Any new tips on passing smog test?

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Originally Posted by Z51JEFF View Post
Last time I got a smog check it was pretty close to the max Nox level even though the cars only got 25,000 miles. Other than a K&N air filter and open housing it’s bone stock. I’ve got a little help from our friend Mr. H,any other tips I should look into,stock air box or open housing,low power mode at the valet switch? I’m thinking about running e85 just to be on the safe side. Thanks for any help here.
Just got CA smog testedy - passed with flying colors. Here's what I did based upon input from Marc H.

1. Replaced O2 sensors - even though no codes.
2. Changed oil and filter. Might have helped hydrocarbons a bit.
3. Put CRC Emissions Systems Cleaner in 3/4 full tank and drove it in 4th gear for about 100 miles (about 3500 rpm) with some WOT exercises. Then normal driving for another 100 miles to finish off the tank of fuel. Filled her up and drove to the smog station. Passed with no problems. Originally failed both Hydrocarbons and NO.

Item #3 is what made the difference I believe.

History is here:
http://www.zr1.net/forum/showthread.php?t=31407&page=3
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