Plan B: Cooling Fan and Voltage controller may be just codes from a failing battery. Find someone with a good battery, swap it to get inspected and then un-swap. Takes about 1 to 1.5 hours for a first time swapping batteries.
In Massachusetts we have a rolling exemption from IMA light obd2 emissions testing for 2001 and older cars. Who knew Texas was stricter?
Insight hybrid technology is super simple, don't over estimate it.
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I try to be helpful. I'm not an expert.
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