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Aug 25, 2011 | 08:29 AM

#31

Larz01

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Quote:

Originally Posted by BillBoost37

A high flow on any 00+ is going to set codes. GM wrenched down on the expected efficiency of the cat.

When I program for this, I ensure the low efficiency and all voltage/heater codes are taken care of as well.

As well as, taking care of the catalyst diagnostic tests

Aug 25, 2011 | 10:25 AM

#32

jezze

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From: Walled lake michigan

Hey larz I see you made your way over to gmforum.. thanks for the info

Sep 29, 2011 | 01:40 PM

#33

jezze

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From: Walled lake michigan

Just a quick update Mr thurs has fixed my cat hi flo code like mentioned. Everything is rounning sweet . Now on to the next mod

Sep 29, 2011 | 06:03 PM

#34

Danthurs

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From: Sheboygan Wisconsin

I think I hear some rockers calling you, or perhaps headers.

Sep 29, 2011 | 10:19 PM

#35

jezze

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From: Walled lake michigan

Both for sure

Sep 29, 2011 | 10:24 PM

#36

Danthurs

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From: Sheboygan Wisconsin

Headers are easy, only tools you need is a 13mm, (manifold bolts) 10mm, (trans dip stick), O2 sensor socket, and I believe 15mm for the bolts under the car. You need a Wbody trans dip stick, and a O2 extension (a longer wire) The speed daddys bolt right in with no cutting or welding.