Yo I had an idea the other day. I'm going to test it out. The shift light comes on t
when you have really low load in every gear but 5th. Sooo all you gotta do is find out what wire tells the ecu that the car is in 5th, disable it and bam, you got an economy light. It would be perfect for anyone without an mpg gauge. Im going to try and figure it out and report back.
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