Gollum Posted May 10, 2004 Share Posted May 10, 2004 Well, i went to smog today... DIDN'T PASS I was pretty upset. The guy said that he thinks the cat is fine and he thinkg is's the mass air meter/rugulator. I can't remeber what exactlly he called it. He said that i barelly failed, wich is why he thinks my cat is fine. He suggested that the stock mass air regulator might still be good, but over time the spring can loose tension and needs to be adjusted. ANYONE who can help PLEASE! I need to pass to get the registration over to my name. I HATE CALIFORNIA.... Although the weather is nice.... Quote Link to comment Share on other sites More sharing options...
MrWOT Posted May 11, 2004 Share Posted May 11, 2004 Several quick ways to pass smog... 1: Use lowest octane fuel possible! I mean it! just run your tank down to near dry and put a few gallons of low grade in it, it will run cleaner. I do smog exams all the time, #1 reason I see people fail is they think premium runs cleaner, it doesn't entirely opposite, lower octane=faster burn. 2: There are additives you can use to help you pass as well, check a parts store near you. Quote Link to comment Share on other sites More sharing options...
280z-racer Posted May 11, 2004 Share Posted May 11, 2004 why didnt you pass?? did you fail for NOx CO or hydrocarbons (HC) telling us that will help us help you Quote Link to comment Share on other sites More sharing options...
Gollum Posted May 12, 2004 Author Share Posted May 12, 2004 I failed the CO %. Max is supposed to be 1.35 at 15 MPH and max 1.15 at 25 MPH and i was at 1.71 and 1.72. The "average" is .20 & .17... i question those averages. I'll have to try the fuel thing, but i won't just run again, i need to be sure i'll pass. It's expensive. Quote Link to comment Share on other sites More sharing options...
MrWOT Posted May 12, 2004 Share Posted May 12, 2004 If you failed CO you're running too rich. As a general rule you can follow what I list below. CO = Too rich. Or dirty airfilter on carb'd applications. HC = Missfire or WAY too rich. NOx = Too lean or too much carbon buildup as this will raise compression and make cylinder hotter. CO2 = Trick question this is what you want! Quote Link to comment Share on other sites More sharing options...
Gollum Posted May 12, 2004 Author Share Posted May 12, 2004 Thanx for the info 8) I'm gonna bring it to a guy i know to have a tune up done once i get my new ZX running. Quote Link to comment Share on other sites More sharing options...
Gollum Posted June 4, 2004 Author Share Posted June 4, 2004 I passed... but it needed a cat... strange... oh well. At least my new Z will have a brand new cat... I'll be postung pics soon... Quote Link to comment Share on other sites More sharing options...
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