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After hours of research, it seems that most causes of limp/low power is caused by mechanicals vs electrical or vacume. Mechanicals being intake hoses, intake manifold, turbo, turbo actuator/vains sticking, cat plugged. Occasionally heard about electrical wires shorting or bare wires, most to MAF or N75, some wires to pump. Blocked vacume lines once, haven't heard of any leaking yet, everone replaces them and no one said they fixed problem yet. Lots of mentions MAF bad none that verified that was the only or actuall problem. No N75 verified to be the only or actuall problem.
Most have in or out problems, no air in no air out mechanicals.
 
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