I have a 99 SS that will have MTI stage 2 Ls6 heads and and X1 cam with all of the MTI tuning on the PCM next time I go in for emissions. The car came factory with an EGR and AIR. I have since replaced the LS1 intake with the EGR to the LS6 without. So I yanked the whole EGR system out of the car with the AIR system. When I go into here shortly will I have anything to worry about? I know MTI will be turning off anythig that throws a code for emissions. Does anyone have the straight scoop on what the new OBDII will pick up?

 

Any ideas here <img border="0" title="" alt="[Confused]" src="images/icons/confused.gif" />

 

Only thing I know is they will use a genric scan tool (so they can access all '96-up obd-2 vehicles) and that will limit what they can get into but, it,s just depends on how far they want to dig. <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />

 

I believe turning off codes still leaves untested trouble codes on list that scan tuner looks at, no SES light but incomplete DTC list for IM 240 scan test. Expert help would be appreciated here, but i read this somewhere.

 

Here are some previous threads that might be of interest:

https://ls1tech.com/ubb/cgi-bin/ulti...3;t=000268;p=2

https://ls1tech.com/ubb/ultimatebb.p...=002139#000000

https://ls1tech.com/ubb/ultimatebb.p...=001831#000001

 

Just turn the lights off, set the MIL to Type X for the items you have removed. Leave the tests “on”, and you should pass.

They are checking to make sure all the tests are in a complete state and that there are no stored DTCs or MIL on. If you shut down the MIL no DTC will be set, but the test will run and show complete.

 

You might fail a visual inspection. Its different for each state, but i know here, each station has an emissions book, they look up your car, and it will say what emissions equip you're suppost to have, when they look for it and dont find it... you'll fail.

 

I dont think anyone is going to have an idea till someone actually goes down there and does the test and either does
1)Pass and everyones happy
or
2)Blows the test so far out thier *** that a national bulletin gets put out to the smog ****'s so that every single Fbody gets run through with a fine toothed comb prior to inspection.

With my luck I will fall into the later category

 

Best bet is to go to your state's website and located their smog website and find out exactly which tests your county must do ( or will be going to in near future) which could be 1 or all 4 which is I/M 240 PCM tests, tailppe, treadmill and also do a eyeball of smog functions.

Where it is true you could leave IM tests running but turn off the DTCs from tripping the MIL, EPA has caught on to that and there are tools that can send a DTC code to PCM and tester looks to see if MIL light went on as it should to check if the DTC was turned off.
There is also a tool that queries PCM to find out if it is the orginal PCM, is it the correct VIN, is the module ID valid, does the correct number of PIDs and I/M tests match for that model year to see if the owner is sneaking in another PCM that would pass smog.

What states, county, etc are or will use that tool is unknown but I'd bet within the next year they will be using them.

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by NataSS Inc:
<strong>I have a 99 SS that will have MTI stage 2 Ls6 heads and and X1 cam with all of the MTI tuning on the PCM next time I go in for emissions. The car came factory with an EGR and AIR. I have since replaced the LS1 intake with the EGR to the LS6 without. So I yanked the whole EGR system out of the car with the AIR system. When I go into here shortly will I have anything to worry about? I know MTI will be turning off anythig that throws a code for emissions. Does anyone have the straight scoop on what the new OBDII will pick up?</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">