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04.5-05 LLY Performance Discussion of Chevy and GMC Trucks with LLY Duramax Turbo Diesel Engines Related To Performance And Longevity

What is the wire connected to the cat on a 04.5 LLY DMAX

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Old 08-26-2010, 05:54 PM
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Default What is the wire connected to the cat on a 04.5 LLY DMAX
I'm planning to install a new exhaust system on my 04.5 LLY DMAX. There is a wire connected to what looks like an O2 sensor. Is this an O2 sensor or the sensor that measures the EGT's
 
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Old 08-29-2010, 09:24 AM
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Is you 04.5 a Calli truck? My 04.5 had no wires attached to the exhaust anywhere.

Do you have an aftermarket EGT probe? If so, that may be it. Post a picture of it. That may help to determine what it is.
 
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Old 08-29-2010, 10:26 AM
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yeah an egt probe was the only thing that i could think of, why someone would put it there though is beyond me
 
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Old 08-30-2010, 05:34 PM
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False alarm: Have been workin on too many gas rides. Appreciatethe feed back. Keep smokin
 
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