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Old 11-22-2005, 10:14 AM
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Originally Posted by redlightning
,and all he did was some welding on the exhaust system.

key phrase right there

all my exhaust welds are done with a 90* bracket and a hose clamp that when on the pipe, give me a handy place to connect the ground to the pipe

ive seen MANY MANY techs slap the ground on the frame while welding a new exhaist tip or muffler on .... pretty easy for power to travel up the ehaust (because chances are its rubber mounted) and into the ECU through a coolant sensor or something

incredibly rare, but possible

i dont see how disconnecting the battery raly makes a difference tho, all your doing is decucing the # of possible power supplies from 2 to one ...
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