This is topic Smog report in forum General Talk at Northern California Ford Owners  .


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Posted by fredfifty (Member # 10320) on :
 
Adjusted the timing to about 9 degrees. As far as the evap leak...tech said could be a leak anywhere from the tank to the charcoal canister. Im thinking (hoping) its the gas cap because they were examining it.

So after the failed test, i adjusted timing, got new motorcraft gas cap (didnt like stant), and changed the oil yet again.

Another thing, i notice on cold starts, my pass side tailpipe has alot more steam (not smoke) than the driver side, and pass side exhaust is cold at idle. Driver side is warm. Clogged/defective cats? Would that affect emissions part of smog test? TIA



[ 2018-12-12, 09:51 AM: Message edited by: fredfifty ]
 

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Posted by [SHO]TIME (Member # 8962) on :
 
Your cats definately will ruin your chance aat passing. Good thing a whole new H pipe with CA compliant cats is only like $850
 

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Posted by i (Member # 12534) on :
 
That Nox is way to high.
As far as the evap use a smoke machine to locate the leak it can be anywhere.
You can replace the cap it’s relatively inexpensive.

For ignition timing you can only adjust -+3 degrees with manufacturers spec so that’s why you fail.

The smog tech ain’t going to give you free diagnostics if it’s a test and repair. If it’s a test only they can’t even diagnose the car.

High nox indicate to much advanced timing
Lean a/f
Bad cats
Cooling system issues
Restrictive exhaust back pressure
Vacuum leak
Overall your combustion temp is really high
 

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Posted by fredfifty (Member # 10320) on :
 
I forgot to mention that after driving for a while (20-30 min) pass tailpipe exhaust is normal (no excess steam from pass side and temps coming out are the same as driver side..via touch, not infrared thermometer) would that indicate that my cats are okay as long as they are heated up when i have to smog it?
 

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Posted by Martinna (Member # 12493) on :
 
Set your timing to 7 degrees before top dead center for smog. Lower timing lowers HC and NOx emissions. Your gas cap was tested individually and passed. Do the smoke machine test to find the leak in your evap test. What the guy above said is true. The leak can be from anywhere. The line from the charcoal canister to EGR often rots.
 

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Posted by fredfifty (Member # 10320) on :
 
I have an appt to get the evap system looked at and that will include the smoke test. In the meantime, im gonna be looking at the grommet where the fuel filler neck goes. I heard those fail after awhile. Also, how can you tell if the charcoal canister isnt doing its job?
 

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Posted by Martinna (Member # 12493) on :
 
Never heard of a charcoal canister going bad. It is common for the rubber Ford uses on fuel filler necks to rot with age. Wait until you get the smoke test results before replacing anything.
 

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Posted by fredfifty (Member # 10320) on :
 

quote:

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Originally posted by Martinna:
Never heard of a charcoal canister going bad. It is common for the rubber Ford uses on fuel filler necks to rot with age. Wait until you get the smoke test results before replacing anything.

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I went under and looked at that rubber neck seal and it is falling apart. I may change that, however i am still doing the smoke test.
 

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Posted by fredfifty (Member # 10320) on :
 
This might be the cause of my fuel evap leak...i hope. Just changed it out with a motorcraft one.


 

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Posted by Blown93Snake (Member # 94) on :
 
That's part of it, but looking at those numbers, there is no way that thing will ever pass lol.

Mine weren't anywhere near that, and even after timing, new air filter, fuel filter, plugs, charcoal canister, and a few other bs items, it STILL Failed.

The state of Ca doesn't want us to have these, anymore.. that's why the limit keeps going down.. it's 100 ppm now... 100!!!!
 

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Posted by Blown93Snake (Member # 94) on :
 

quote:

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Originally posted by Martinna:
Never heard of a charcoal canister going bad. It is common for the rubber Ford uses on fuel filler necks to rot with age. Wait until you get the smoke test results before replacing anything.

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quote:

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Originally posted by fredfifty:
Damn hella deflated my hope balloon. But i hope to prove you wrong sir.

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quote:

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Originally posted by Blown93Snake:

quote:

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Originally posted by Martinna:
Never heard of a charcoal canister going bad. It is common for the rubber Ford uses on fuel filler necks to rot with age. Wait until you get the smoke test results before replacing anything.

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LOL wat

Charcoal canisters are toast after about 100k.. every single one of them. Unless you know a magic trick to make your motor not expel any carbon emissions that collect in that tiny canister for 100k+ miles?

lmfao

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quote:

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Originally posted by wilit:

quote:

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Originally posted by Blown93Snake:

quote:

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Originally posted by Martinna:
Never heard of a charcoal canister going bad. It is common for the rubber Ford uses on fuel filler necks to rot with age. Wait until you get the smoke test results before replacing anything.

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LOL wat

Charcoal canisters are toast after about 100k.. every single one of them. Unless you know a magic trick to make your motor not expel any carbon emissions that collect in that tiny canister for 100k+ miles?

lmfao

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Just FYI, I smogged a '79 Pinto earlier this year with the original charcoal canister and at least 230k miles (it's possible it has up to 430k miles) and it passed with flying colors.

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quote:

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Originally posted by fredfifty:
This might be the cause of my fuel evap leak...i hope. Just changed it out with a motorcraft one.

<img src="https://cafords.com/album//00010320/CF17C2CDEC954D9699D9357B1619C1C0.jpeg" style="max-width: 640px" alt=" - " />

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quote:

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Originally posted by i:

quote:

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Originally posted by fredfifty:
This might be the cause of my fuel evap leak...i hope. Just changed it out with a motorcraft one.

<img src="https://cafords.com/album//00010320/CF17C2CDEC954D9699D9357B1619C1C0.jpeg" style="max-width: 640px" alt=" - " />

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Those are pretty common to rot. I had to change mine also when I dropped my fuel tank to change out the whole assembly because it sat for 10 years.
Charcoal canister is not that expensive if I remember correctly.
Shake it to see if the charcoal is not solid.
Check the Charcoal canister vacuum line that leads to the intake manifold to see if there is any cracks. That can cause to fail Evap. Then the other one that leads under the car.

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quote:

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Originally posted by Blown93Snake:
That's part of it, but looking at those numbers, there is no way that thing will ever pass lol.

Mine weren't anywhere near that, and even after timing, new air filter, fuel filter, plugs, charcoal canister, and a few other bs items, it STILL Failed.

The state of Ca doesn't want us to have these, anymore.. that's why the limit keeps going down.. it's 100 ppm now... 100!!!!

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Right in californias ass! Lol
 

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Posted by Martinna (Member # 12493) on :
 
Good numbers. They show your car is running a little lean. HC is lower than a Prius meaning the burn is hot and burning everything up. NOx is high meaning you're lean. List all the changes you made to pass.
 

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Posted by fredfifty (Member # 10320) on :
 

quote:

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Originally posted by Martinna:
Good numbers. They show your car is running a little lean. HC is lower than a Prius meaning the burn is hot and burning everything up. NOx is high meaning you're lean. List all the changes you made to pass.

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quote:

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Originally posted by i:
A visual inspection can solve a lot of problems before diagnosing a car.
Well now you can take it off or just leave it on just in case if the popo pulls you over and wants to ref it.

I’ll leave it on in my opinion.

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Yup gonna leave it on...and im going to add “smog legal” to my sig as well
 

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Posted by Martinna (Member # 12493) on :
 
Increasing timing increase both HC and NOx. Now that you passed smog, put your timing at 12 or 13 for more power and higher MPG. Aftermarket catalytic converters don't last long. If you drive a lot, run your off road mid pipe all year except for smog time.

Out the seller that scammed you on the H pipe. If you let him go, he won't learn his lesson and continue to scam your fellow Mustang drivers. I buy parts from people on forums because people have reputations to protect. A lot of crooks on Craigslist and Facebook these days. Can't trust them.
 

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Posted by fredfifty (Member # 10320) on :
 

quote:

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Originally posted by Martinna:
Increasing timing increase both HC and NOx. Now that you passed smog, put your timing at 12 or 13 for more power and higher MPG. Aftermarket catalytic converters don't last long. If you drive a lot, run your off road mid pipe all year except for smog time.

Out the seller that scammed you on the H pipe. If you let him go, he won't learn his lesson and continue to scam your fellow Mustang drivers. I buy parts from people on forums because people have reputations to protect. A lot of crooks on Craigslist and Facebook these days. Can't trust them.

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