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I HOPE this is a stupid question.....

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Old Jan 5, 2011 | 05:43 PM
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ToddMcF2002
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I HOPE this is a stupid question.....
Is my wideband bung on the wrong side of the HFC?

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Old Jan 5, 2011 | 05:55 PM
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It looks like it will be close to where the O2 goes into the frame rail. 2 10mm bolts hold a guard in place to protect a rubber grommet
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Old Jan 5, 2011 | 05:56 PM
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OK but... doesn't a wideband bung have to be BEFORE the cat???
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Old Jan 5, 2011 | 05:58 PM
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Oh yeah, there is only 1 rubber hanger for a test pipe (HFC) is near where the CBE connects. Hanger points to passenger side.

EDIT: my bad, now i understand "wrong side"

EDIT: should be before the Cat.
Last edited by Wrex1977; Jan 5, 2011 at 06:13 PM.
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Old Jan 5, 2011 | 05:59 PM
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^yes, before the cat
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Old Jan 5, 2011 | 06:07 PM
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*sigh* WTF.... OK back to the vendor
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Old Jan 27, 2011 | 12:45 PM
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Wouldn't make as much sense after the cat. Does the vendor give any good explanation why it's after the cat?
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Old Jan 27, 2011 | 01:27 PM
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Originally Posted by TTsumibishi
Wouldn't make as much sense after the cat. Does the vendor give any good explanation why it's after the cat?
"Whoops"
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Old Jan 27, 2011 | 01:32 PM
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Originally Posted by ToddMcF2002
"Whoops"
Those are the best type of explanations. That's pretty funny
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Old Jan 27, 2011 | 01:39 PM
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The actual mistake was made because it was an ok and convenient config for a true test pipe. Add in the HFC later and you have the "whoops" condition.
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Old Jan 27, 2011 | 01:50 PM
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Wait a minute. Many Dyno's use tailpipe Wb02's right?

It's not wrong for it to be after the cat, just slightly less accurate right?
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Old Jan 27, 2011 | 02:02 PM
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It's not wrong, but it will throw off a true A/F.
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Old Jan 27, 2011 | 02:24 PM
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I think a bad A/F reading would be... Bad. The vendor is fixing things. Not a big deal.
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Old Jan 27, 2011 | 04:26 PM
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Don't you want the A/F as close to coming out of the block for a true reading? Well before going through the CAT.
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Old Jan 28, 2011 | 08:14 AM
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Of course I do, but If shops are using a tailpipe sniffer for their o2 readings, how far off can it be directly after the cat?

I'm guessing .1-.3 tops....
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