Re: Check engine,and reduced power to engine warning.
I had this problem on an 04 MAXX. I searched hundreds of posts, asked questions on multiple forums, no one had any good information.
Bumps in the road would sometimes cause it for me too. This got me thinking. One day when it was very damp out I decided to start the car to see if I could replicate this. With the car running I started wiggling wires and connectors, tapping sensors, and banging on the fuse box...
For me the cause of over a year's worth of unreliability, worry, frustration, and constantly having to carry my scan tool was caused by a only very slightly corroded TAC fuse. A $4 quick fix - new fuse and anti-corrosion gel. Now a few months later it is doing it again.
I hope this helps in your search for the answer, or at least a quick fix. If by chance Michelle P. could help me to figure out how to finally fix this ongoing problem I would be so grateful.
Any Ideas? How do I take out a fuse box? Clean terminals or replace? What parts, tools, and/or supplies do I need?