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So I tested my TPS tonight and it's fine, passed with flying colors. I am beginning to believe it's my o2 sensor that's causing the loss of power on cold starts and sometimes when cruising at speed more and more because sometimes I just can't seem to get good FE. I drive the same stretch of road, everyday to work, and I know what FE I get on a day with no winds, but sometimes I'm down by 5-8mpg for no apparent reason. It's driving me bonkers and it all started when TC's started showing up for clogged EGR passages.
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