Join Date: Feb 2008
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SES light on in stock DP tuner setting, off in others, and MPG down
Any ideas? Haven't dropped the cash for AutoEnginuity yet, and my OBD II code reader doesn't work on our trucks. This last tank I probably getting 10-11 mpg when I've always gotten 14-16mpg no matter if I babied it or drove it like it was stolen.
Fuel filter was changed in December, and oil was changed recently as well.
01 F250 PowerStroke
BTS, AFE Stage 2, DP Tuner, ISSPRO Gauges
Clayton's Long Arms, 231, 8.8, 35" KM2's