Failed TEXAS Emission Inspection = now passed emission test today
10-31-2010 | 02:42 PM
#32
Addict
Rennlist Member
Rennlist Member
Joined: Jul 2002
Posts: 2,673
Likes: 35
From: AZ
My '87 S4 and '93 GTS have never had a problem passing the IM240 (roller) test in the Phoenix AZ metro area. The tests have always been done in D - I know because I sit in the car while the test is done.
10-31-2010 | 08:30 PM
#33
Drifting
Joined: May 2009
Posts: 2,724
Likes: 7
ACETONE
specifically 4oz/ 10 gal 0f 100% petrol.
High HC's are due to rich burn or un-atomized petrol,
High Nox is due to high combustion chamber temps and most of the time due to ign. timing advance.
Check timing and add acetone, you will pass. I've done it many times on a few vehicles and alot of carbeurated bikes that can't atomize the HC's unlike fuel injected bikes. A clogged injector will fail you easily.
specifically 4oz/ 10 gal 0f 100% petrol.
High HC's are due to rich burn or un-atomized petrol,
High Nox is due to high combustion chamber temps and most of the time due to ign. timing advance.
Check timing and add acetone, you will pass. I've done it many times on a few vehicles and alot of carbeurated bikes that can't atomize the HC's unlike fuel injected bikes. A clogged injector will fail you easily.
10-31-2010 | 08:57 PM
#35
Drifting
Joined: May 2009
Posts: 2,724
Likes: 7
Doesn't add any octane chains. It is a polar solvent that alleviates the surface tension of the non-polar HC chains (petrol) guaranteeing complete atomization and O2 contact in the combustion chamber. 2nd it is a fuel with it's own oxygen molecule attached. It is basically turbo charged propane if you look at the molecule structure. I use 3oz acetone per 10 gal of petrol on every vehicle I own, at the conc. of (1/640) it will not harm any fuel lines synthetic or rubber. Some guys in Colorado at the higher elevations add even more acetone to the mix to offset the atmospheric oxygen lost, the higher you go.
10-31-2010 | 09:09 PM
#37
Rennlist Member
Joined: Sep 2010
Posts: 13,582
Likes: 1,034
From: Boulder Creek, CA
Doesn't add any octane chains. It is a polar solvent that alleviates the surface tension of the non-polar HC chains (petrol) guaranteeing complete atomization and O2 contact in the combustion chamber. 2nd it is a fuel with it's own oxygen molecule attached. It is basically turbo charged propane if you look at the molecule structure. I use 3oz acetone per 10 gal of petrol on every vehicle I own, at the conc. of (1/640) it will not harm any fuel lines synthetic or rubber. Some guys in Colorado at the higher elevations add even more acetone to the mix to offset the atmospheric oxygen lost, the higher you go.
11-01-2010 | 05:40 PM
#39
Thread Starter
Three Wheelin'
Joined: Jun 2005
Posts: 1,697
Likes: 14
From: Rockport, TX
Passed on November 1, 2010
See the update in #1
I appreciate all the feed back over the weekend I did do the following things over the weekend.
1 Oil change
2 Changed the plugs (was overdue)
3 Disconnected and plugged the vacuum line from the smog pump ( per Schoki's advice a Porsche procedure
As you can see from the new report it passed with flying colors.
Thanks to all that responded to this thread hope fully some else may benefit from this experience in the future.
See post #1 with the updated report
Happy motoring
I appreciate all the feed back over the weekend I did do the following things over the weekend.
1 Oil change
2 Changed the plugs (was overdue)
3 Disconnected and plugged the vacuum line from the smog pump ( per Schoki's advice a Porsche procedure
As you can see from the new report it passed with flying colors.
Thanks to all that responded to this thread hope fully some else may benefit from this experience in the future.
See post #1 with the updated report
Happy motoring
