i have a 91 gt automatic. it is stock and sounds and runs good. i get one check engine code and that is code 63 which says low reading at tps sensor. when set to 10 degrees i cant step on it with out it bogging out. no power no kickdown. i put it to 20 degrees and it runs a lot better. can this all be because of a bad tps sensor / code 63? or is something else wrong with my car that causes it to not be able to run at 10 degrees.
degrees twhy does my car run better at 20 timing than 10 ? bad tps?
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