The Headers Are In!!!!!!!

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Redtruck-VA

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Man, that looks great! Thanks for the pictures, they finally clarified for me that I am not going to be able to run long tubes. I have moved my cat and 36 inch muffler as far back as I could and the cat is at the cross member and I won't move it again. Looking Bassani mid lenght. I might suggest you read up on the 02 sensors in the manual. But the short version is the front 02 signals the PCM A/F for the PCM to maintain 14.7 ratio during closed loop. And the PCM counts how many times it shifts high/low voltage. 1 volt being high and anything less is low. The Cat absorbs oxygen to oxidize unused emissions, causing a leaner condition behind the cat and less voltage shifts. These high/low shifts are also counted and as long as the rear has less shifts than the front there is no error. So using the anti-fouler stuffed with steel wool cause the sensor to not react to the gases that are essentially the same as the front sensor is seeing preventing codes. OBTW, the anti-foulers are really old school and were originally used on oil burning engines to keep the spark plugs from fouling.
 
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shadow11

shadow11

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I didn't stick steel wool in mine, think it will still give me a cel?
 
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shadow11

shadow11

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Yep I don't have any. Guess we will wait and see if it throws a cel
 

Redtruck-VA

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I didn't stick steel wool in mine, think it will still give me a cel?

I don't think that is a big deal. The sensor may be isolated enough not throw an error code. If it does, stuff some steel wool in it.
 
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shadow11

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I don't think that is a big deal. The sensor may be isolated enough not throw an error code. If it does, stuff some steel wool in it.

Ok, ill see if it throws a code on my way to work tomorrow and if it does ill stick some in there.

If it does, then try the steel wool, or try stacking two non foulers. Heard that works as well.

I have them double stacked and it doesn't look like much air can get to the sensors so it may be fine.
 

Redtruck-VA

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When they stack anti-foulers I think they drill the one that the sensor screws into and leave the one that screws into the pipe with a small hole. That really isolates the sensor. Might even beable to terminate the sensor signal wire to stay in one state or the other and not throw codes.
 
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shadow11

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When they stack anti-foulers I think they drill the one that the sensor screws into and leave the one that screws into the pipe with a small hole. That really isolates the sensor. Might even beable to terminate the sensor signal wire to stay in one state or the other and not throw codes.

Thats exactly what I did. Drill a hole in the one the O2 sensor screws into and then screw the other one to the one with the hole and then screw it in the pipe.
 

Silverbullet08

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They are plugged in but not in the pipe. Just wrapped in foil and thrown in the heat shield
 

Trupiano

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They're not reading any exhaust gases so they wont. You would only get a CEL if the O2's were reading too much exhaust gas. Since they are out of the flow, they aren't wont read.
 

Redtruck-VA

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The only thing the rear sensors do is have their voltage high/low shifts counted. As long as their count is less than the front sensors there shouldn't be a code. They do have heaters incorporated (560F-660F) in them and that could present a problem.
 
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shadow11

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Ok so on my way to work the cel came on and I just read it and this is what it says

215994481_photobucket_40895_.jpg


Anybody know what it means?
 
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