Seafoam and SMOG

Blev

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Aug 17, 2003

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So. Cal. V-Town

Jul 27, 2005

#1

• Jul 27, 2005

• #1

I tried to search but the stupid banner is in the way and I can't do select anything.

I just failed smog, barely, and need some tips on getting her to pass. I heard that seafoam may help, what is it, how do I use it and where can I get it? I changed my plugs about 2 or 3 months ago, changed my air filter with the stock airbox and inlet pipe. My oil isn't due for changing for another 1k miles, but I guess if it will help, I'll change it. Any and all advice will be appreciated.

Thanks

 

40th GT

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Apr 7, 2004

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Lawrenceville, GA

Jul 27, 2005

#2

• Jul 27, 2005

• #2

Clean out your throttle body real good with air intake cleaner or TB cleaner. Seafoam can be bought through a parts store and the instructions on the can tell you everything you need to know.

New o2 sensor might help things out.

 

0

01TrueBlueCobra

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Feb 16, 2004

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somewhere

Jul 27, 2005

#3

• Jul 27, 2005

• #3

run a can of seafoam in your gas tank and another can through the PCV valve. Also try changing the fuel filter, and oil

 

sgarlic

Founding Member

Apr 21, 2001

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Jul 28, 2005

#4

• Jul 28, 2005

• #4

I would definately clean the TB .. but I don't think changing the oil will effect anything.

Seafoam may or may not do much for you relating to emmissions. It'll clean out your fuel system and PCV system for sure if you put it in, but expect tons of smoke for the first hour or so after you put it in.

 

M

Mel96GT

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Aug 31, 2004

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San Diego

Jul 28, 2005

#5

• Jul 28, 2005

• #5

Is your X-pipe catted? If not, good luck passing smog.

 

K

Kilgore Trout

Fried or Broiled ?

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Mar 30, 2005

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Jul 28, 2005

#6

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• #6

The throttle body has a special coating on it that prevents dirt build up. If you "clean" it you will remove this coating. It is strongly recommended not to "clean' your throttle body for this reason

 

Blev

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Aug 17, 2003

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So. Cal. V-Town

Jul 28, 2005

#7

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• #7

The TB and plenum are only about a year old, so I doubt that's the issue. The X-pipe is catted, so I guess I'm just screwed. I was hoping there was a trick or two that I could do that would help me pass smog. My numbers are not that off, so small things might just do the trick. My entire intake and exhuast set-up is all fairly new so I don't understand. My last Dyno, my A/F was good but I did change out my BBK CAI back to the stocker WITHOUT disconectting my battery. Don't think that would do much though. Any other advice/tips?

 

K

Kilgore Trout

Fried or Broiled ?

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Mar 30, 2005

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#8

• Jul 28, 2005

• #8

I think you should use SeaFoam on it in all three ways. The can has instructions, you can Google for them, or you can use this website's search feature...

 

mr. jones1

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Apr 2, 2005

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NJ

Jul 28, 2005

#9

• Jul 28, 2005

• #9

do the seafoam in your gas tank and another can through the PCV valve. as others have said.
you can get it at NAPA. these engine do get a lot of carbon on the pistons, valves and manifold. seafoam will clean it. That carbon is like a sponge. It sucks up fuel and has a big effect on emissions.
change the oil when you done. give it a few spirited drives after the seafoam.
then go to inspection.

 

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01TrueBlueCobra

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Feb 16, 2004

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somewhere

Jul 28, 2005

#10

• Jul 28, 2005

• #10

Why don't you put on your stock midpipe for the test.

 

Gearbanger 101

Straight Outta Locash

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Aug 10, 2002

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Ontario, Canada

Jul 28, 2005

#11

• Jul 28, 2005

• #11

Blev said:

I was hoping there was a trick or two that I could do that would help me pass smog. My numbers are not that off, so small things might just do the trick.

Click to expand...

The biggest killer.....Increased octane = increased emission levels. Run regular gas along with 1-2 bottles of Isopropyl Alcohol (rubbing alcohol) per 1/4 tank for emissions testing. I see you’ve done a tune up, which is good. If you're able to, set your hard idle to about 950rpm and If you're running a 160-180 T-stat, switch it out for the stock 192. Hotter engine coolant is better.

These tips should be more than enough to bring you back over the edge.

 

T

Torinalth

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Jul 16, 2002

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Clayton NC

Jul 28, 2005

#12

• Jul 28, 2005

• #12

a friend of mine was really shady with his method, he loosened the flanges between his midpipe and the catback letting just a bit of air to escape. brought him back into the green. though they will most definatly frown on this if you get caught.

Torinalth

 

sgarlic

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Apr 21, 2001

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Jul 28, 2005

#13

• Jul 28, 2005

• #13

Kilgore Trout said:

The throttle body has a special coating on it that prevents dirt build up. If you "clean" it you will remove this coating. It is strongly recommended not to "clean' your throttle body for this reason

Click to expand...

That's why you use throttle body cleaner, not carb cleaner. Throttle body cleaner doesn't have the abrasiveness in it that removes the coating.

 

Blev

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Aug 17, 2003

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So. Cal. V-Town

Jul 28, 2005

#14

• Jul 28, 2005

• #14

I thought about the higher octane, but my car pings with with anything other then 91. I guess I'll put just enough to go and take the test. I also hear about the alcohol in the tank. I'll try that as long as it won't hurt anything. It won't hurt anything right?

 

K

Kilgore Trout

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Mar 30, 2005

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Jul 28, 2005

#15

• Jul 28, 2005

• #15

sgarlic said:

That's why you use throttle body cleaner, not carb cleaner. Throttle body cleaner doesn't have the abrasiveness in it that removes the coating.

Click to expand...

Oh ok, thanks for correcting me on that one. I did not know that

 

Gearbanger 101

Straight Outta Locash

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Aug 10, 2002

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Ontario, Canada

Jul 28, 2005

#16

• Jul 28, 2005

• #16

Blev said:

I'll try that as long as it won't hurt anything. It won't hurt anything right?

Click to expand...

Nope......what do you think gas line antifreeze is? Thousands of winter burdened Canadians can't be wrong.

 

Blev

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Aug 17, 2003

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So. Cal. V-Town

Jul 28, 2005

#17

• Jul 28, 2005

• #17

Gearbanger 101 said:

Nope......what do you think gas line antifreeze is? Thousands of winter burdened Canadians can't be wrong.

Click to expand...

Thanks bro, you da man