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Discussion Starter · #1 ·
I am not sure whether or not this applies to the Z, all autos, or what's indicated in the inspectors' manual as to what measure to use for different vehicles. I was looking at one of my old, year 2000, smog reinspection pass results and saw the following:

2500 RPM Test STANDARD: 2500 + or - 300 Last year, it was done at 2434 RPM on my 260

02 TEST 1.9
CO % TEST 0.10 STANDARD 3.50 PASS
HC (PPM) TEST 31 STANDARD 700 PASS
DILUTION (CO+CO2) TEST 13.70 STANDARD 6.0 VALID
RPM TEST 2500 + or -
300 STANDARD 2534 VALID


IDLE Test TEST 1.4

02
CO2 % TEST 0.61 STANDARD 3.50 PASS
HC (PPM) TEST 162 STANDARD 700 PASS
DILUTION (CO+CO2) TEST 14.21 STANDARD 6.0 VALID
RPM TEST 937 STANDARD 775
+or- 425 VALID
If I interpret the above correctly, it did not look too bad without the smog pump, but I will not chance it. I want to pass the first time around.

Does this indicate that I can idle my Z as high as 1200? If so,would this be safe or should I take it to 1000? Thanks for any help.

Smog inspection is to meet a November 11 registration deadline. I am trying to get it ready early enough to mail in the registration to avoid DMVs mad house.

I am behind on some of my replies to some posts. Everyone seems to be pulling and cheering for me and I appreciate that. Ernest (240/260Z) Las Vegas
 

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Re: Smog-Test Parameters (I high is safe to idle a

If you passed with those specs last year, you should easily pass this year. Very lean on CO and apparantly no misfires from leaness to cause a high HC. Looks like a VERY clean running car. I don't know how the tester interprets the idle setting but it does look like you could run it almost to 1200 and be safe. Your choice. I would try to at least run the 1000. Good luck!
 

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Re: Smog-Test Parameters (I high is safe to idle a

JohnH240 thanks. I had my 1999 Toyota Pre-Runner smog tested this morning. This gave me a chance to talk with the inspector. He answered a lot of the above questions and his answers match yours. I also asked him if the $201 Exhaust Gas Analyzer by Moss Motors, which measures only carbon monoxide, would help. He said, with the Z cars it would, because the Z cars tend to run rich and that the carbon monoxide feature is what would/could correct the richness. I contacted the Moss Technician again this morning and he explained some of the analyzer's features. According to the technician, it will work on any vehicle that has a tail pipe and it connects to the battery and there are hoses/tubes. Contact Info. for Moss Motors: Customer Ser. 1-800-667-7872 Technical Advice 1-805-681-3411. When my money is right and wife removes my spending cap, I think I may go ahead and by one. Again, thanks Ernest (240/260Z)
 
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