Failed secondary air system smog - Maserati Forum
 
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post #1 of 10 Old Yesterday, 03:21 AM Thread Starter
 
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Failed secondary air system smog

I have a 2011 GTS with 15k miles. This year was the first year I was required to get a smog check here in California. I didn’t pass the secondary air system and can’t figure why. It’s been about 4 years since I last replaced the battery and normal driving. I have Lanari sport cats but I was told that shouldn’t affect anything. I have low miles on the car but still put about 2k miles/yr. Can I get some help here?

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post #2 of 10 Old Yesterday, 03:52 AM
 
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You can with the right tone...Did you have a fault for it or did the monitor not run? Jason

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post #3 of 10 Old Yesterday, 04:41 AM Thread Starter
 
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Originally Posted by [email protected] Enzo`s Atlanta View Post
You can with the right tone...Did you have a fault for it or did the monitor not run? Jason
The monitor did not run. Secondary air said not completed in the diagnostic tool.

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post #4 of 10 Old Yesterday, 10:13 AM
 
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Call the dealer and have them check VIN#...There is a recall for cars not running the secondary monitor correctly...A software update corrects it....Jason

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post #5 of 10 Old Yesterday, 04:17 PM

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+1 ( what Jason said ) and even if it's not part of the free recall , the procedure takes 15-20 minutes so a dealer may charge you one hour labor to do that, maybe half hour if dealers do partial hour charges. IMO, worth trying that solution, either way. Also, just for the heck of it first try the secondary air system's reset by driving the car according to the step by step instruction guide which applies when you change the battery and need to smog the car fairly soon after that ( I got one from the dealer and posted the info on one of the forum threads but cant remember which one.. ) I'll look for it , but in the meantime do a forum search for either :smog test" or "emissions" test, or even "secondary air system" , and that thread should show up .

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post #6 of 10 Old Yesterday, 05:00 PM
 
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The SAI monitor only runs at cold start so driving the car around doesn't help...Jason

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post #7 of 10 Old Yesterday, 06:25 PM
 
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I thought all non stock cats are illegal now in California, smog shop said it was ok for the larini cat?

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post #8 of 10 Old Yesterday, 08:12 PM

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Originally Posted by [email protected] Enzo`s Atlanta View Post
The SAI monitor only runs at cold start so driving the car around doesn't help...Jason
It sure fixed my car's SAI "not ready" problem , right after I took it through these paces ( this is from a Ferrari-Maserati dealership service ) :

Start from cold ( first start of the morning ) and let it run at idle it for 4 minutes .

Drive it normally , without any sudden, hard acceleration , and without frequent gear shifts , as much as possible at fairly constant speed in 3rd or 4th gear and rpms between 2,000 and 2,500 for at least 4 miles. ( not easy to do this except in the slow lane of a highway , and getting a lot of stares from other drivers....and not because of the GT's beauty )

In any reasonable gear , 2nd or higher accelerate GRADUALLY to 6000 rpm , and then reduce engine speed to 2000 rpm , REPEAT this 8 times.

Stop and let the car idle for 5 minutes, and then turn off the engine.

Wait for 15 minutes.

Start and drive normally , without sudden acceleration of frequent gear shifts, for 20 minutes .

Dan
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post #9 of 10 Old Yesterday, 10:13 PM
 
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Yes, start it from cold is when it runs the SAI monitor....Continued driving of the car around once the car is warm and it has not run the monitor will not be doing anything to make it run that monitor....All manufactures have a drive cycle like that and they are all very similar...The point I was making is it only runs that monitor on startup...So if you are missing that one monitor then continued driving of a hot engine will do nothing for you.....Jason

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Last edited by [email protected] Enzo`s Atlanta; Yesterday at 10:35 PM.
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post #10 of 10 Old Today, 12:12 AM

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Yeah, that whole routine has to start from dead cold , otherwise it won’t make any difference no matter how much and how you drive it.

Dan
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