Because they usually have not touched any emissions equipment. just a tune to make it run rich and dump coal! They also do have a functionality test but no sniffer like a gas car!

 

Im smogin my car next week. Should pass the sniffer with out a problem. The visual is wat im worried about.

Might have to powder coat my 2.5 pulley.

Melon if u get ur fuel trims dialed the sniffer is cake. There's no reason for ur car to run dirty cuz most mod ppl do like intake, tunes, exhaust. Mods to help the engine breath should make it run cleaner if the tune is set up.
Wen i was on gms2 i noticed that tune wasn't the best fuel trim wise.

 

dey wont know

 

In for updates.

also:
Does this mean that they can detect a tune? If so, can they say it's reason to not pass?

 

They would have to have all the factory tune files for every vehicle..i would highly dought they would.

 

Do not load a stock tune file with your 60s unless you switch all the 60 lb injector tables over into the tune.
This would still require you tune the fuel trims since the closed loop section of the maf/VE is tuned for 32s.

There are major readiness codes that need to be met based on a variety of driving conditions. Resetting the battery, turning codes off will not help you.

Pay to play dood

 

I'm goin to. Goin on Monday. Was just checking all options

 

They are coming out with a new OBD2 system for the smog test called the IOS. As to how far it will look into things i don't know. My guess is that it will not look passed CEL light on/off, readiness monitors, Vin#. It will come out at the same time the new testing starts. The main reason for a new obd2 reader is for CAN cars.

 

Wat is a CAN car? Google didnt help

 

controller area network

http://en.wikipedia.org/wiki/CAN_bus

 

Ohh duh..lol

 

Thought all cars sold in the US, 2008 and newer had to be CAN compliant

 

That is correct.

 

Don't forget, starting JAN 1 2014 all monitors have to be completed EXCEPT evap (2000 and later). For diesel every monitor, including evap, has to be completed (1998 and later).


Just put all the stock parts back on to get by the visual, make sure you've completed all but one of your monitors, run 14.7:1 at idle/part throttle and you're golden

 

So ur sayin turn the monitors back on??

 

Turn them back on? You never turned them off. Hp tuners just prevents the check engine light from coming on but can't do anything in regards to the monitor readiness status

 

Yes u can cuz i just went to smog my car the way it is and it ran very very clean. Except the monitors were not ready. I went in to hpt turned them back on. It was good to go.

 

Thread revival. Anybody ever have trouble with smog with a ZFR or any bigger turbo? If I just throw my stock pipes/intake/downpipe on should I be ok?

 

if ur tune is dialed. u will need to retune if u change ur setup like that

 

You should be ok. If its all stock with the ZFR, since the ZFR uses the BPV like the ko4. If you have a BOV setup then you may have trouble.

 

I realize this a pretty old post and completely after the fact haha but that isn't true in regards to hp tuners and bypassing the emissions monitors. I know for an absolute fact that you can not set a monitors status to "complete" using hp tuners (I would LOVE it if we could). The only thing that can be done through hp tuners is to disable the dtc from causing your check engine light to come on. Despite the light not being on the monitors will still be in "incomplete" status. Best example of this is when installing a cat-less downpipe and turning off the P0420 code which gets trip because the ecm sees the rear 02 sensor switching which usually means the catalytic converter has **** the bed so you'll never complete the cat monitor even though you never tripped the cel.

You can install the stock catalytic converter and blow all zeros but have incomplete monitors which causes a fail. Even with an aftermarket tune and aftermarket injectors you'll still pass because you're just running stoich at idle/part-throttle

 

How did it go with the ZFR/stock pipes/intake/downpipe during the test?

Do you have 1 PCM tuned for ZFR/K&N Intake/CIA Catless DP, and another tuned for ZFR/stock pipes/intake/downpipe?

So you're saying that, as long as the visual passes, when properly tuned for the modifications the car has, there should be no problem with the monitors. How about the sniffer?

Has anybody run the ZZP ported LNF head/stage 1 cams/tune and run through the test? How about stage 2 cams? What about meth injection? If it's hidden so as not to get noticed during the visual, can it be detected through the tailpipe?

 

As long as you have the cats back in you should be good to go. Since our cars have the ability to control the camshaft events to a certain extent I cant see why the larger cams can't pass the sniffer. You'd be pretty surprised how dirty a car can be and still pass the sniffer. Now that being said you can't just slap the stuff in and pass. You would have to actually manipulate the tables we have access to in hptuners to make the cams blow clean at idle and ~2500 rpms. Also make sure the car doesn't need to have the idle any higher then 1100 rpms or you're screwed. Today I had a buddies 360 spider in that idled at 1050 and it was touch and go for a bit haha

 

I have a cammed and SC'd 2.2L and with the engine good and hot, I managed to pass smog with a high flow cat. just figure i'll pass that info along.

 

I just did my 06 sc and it passed but hardly no modifications just gm stage 2 with smaller pulley and aem intake. No sniffer. Next year ill have to smog the 09 ss/tc I hope that passes. It has a catless dp and its tuned, no cel. Are turbo charge pipes illegal?