Ca smog help please
Melting Slicks
Joined: Jun 2012
Posts: 3,163
Likes: 6
From: Oceanside California
Sometimes cars need a good high rpm run to blow out the carbon build up, and warming the cats is always smart. But it is the cam in this case. Too aggressive for an emissions test.
Burning Brakes
Joined: Jun 2012
Posts: 803
Likes: 42
From: Destin Florida
I did ET in GA for 15 years and the program there was basically a copy of the CA standards. Biggest diffence was that CA had more of an issue with CO and Ga had more of a issue with NOX. Mostly due to the different weather/climate conditions. I only have a quick second but since you are driving a stick car if you can induce a false vacumm source say like a small leak to the brake booster etc. it will take HC down in a second, on the flip side it will cause NOX to rise but it seems you have plenty of room there under the standard. My bet is the performance cats are not up to the GM cats or you would probably be OK. Good luck my friend !
Burning Brakes
Joined: Jun 2012
Posts: 803
Likes: 42
From: Destin Florida
And PS I know in the long run the vacuum leak will set off a lean code but if the "leak" is done right before the test it should not set before you walk out with a certificate lol. Also in GA just for the info we started to have to do visual's on the cats as the instructer of out ET class said that "some of thses guys with performance cars have figured out how to bypass the converter codes, something called simulaters" LOL so far behind the curve !
Thread Starter
Le Mans Master
Joined: Apr 2011
Posts: 5,495
Likes: 332
From: USA
Thanks again all for the input.
I was only at 66 or so on HC's at 15mph (passing is just under 50 we think)...and I was easily passing at 25mph.
Do you guy's think it's possible that TPS can TUNE me to passing? They seem to think it's possible.
Again it looked like I wasn't that that far off at 15mph if my CATS are hot.
I was only at 66 or so on HC's at 15mph (passing is just under 50 we think)...and I was easily passing at 25mph.
Do you guy's think it's possible that TPS can TUNE me to passing? They seem to think it's possible.
Again it looked like I wasn't that that far off at 15mph if my CATS are hot.
Racer
Joined: Jun 2012
Posts: 459
Likes: 1
From: LAUREL MD
Smog
I agree with Bill Curlee your PCV system should be thoroughly checked. Did the previous owner have the air injection system tuned out? Have you checked for codes, history or otherwise?
This is from a post by Paul Wood from NC in a different thread:
"The AIR does nothing for performance and is only there to satisfy EPA emissions by adding "
'fresh air' to the exhaust prior to the CATs heating up."
Don't know if this would make a difference, but if it effects emissions I wouldn't leave any stone unturned. I would check the entire AIR system, especially to see if it has been tuned out.
This is from a post by Paul Wood from NC in a different thread:
"The AIR does nothing for performance and is only there to satisfy EPA emissions by adding "
'fresh air' to the exhaust prior to the CATs heating up."
Don't know if this would make a difference, but if it effects emissions I wouldn't leave any stone unturned. I would check the entire AIR system, especially to see if it has been tuned out.
Last edited by FRITZM; Oct 22, 2012 at 02:52 PM. Reason: spelling
Safety Car
Joined: Apr 2004
Posts: 3,932
Likes: 8
From: Hayward California
Those high-flow cats are good for maybe a year. They'll flow much longer but won't be good enough to pass a sniffer. I keep a stock set of cats just for smog time.
plus, that rotten egg smell may be a good indication. I know with high-flow's I would get that but when subbing in the stockers it was clean, clean, clean...
plus, that rotten egg smell may be a good indication. I know with high-flow's I would get that but when subbing in the stockers it was clean, clean, clean...
