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Service Engine Soon light
WHOOPS -- somehow I have two different log ons -- I will deleter the Rookie one...
I put in a DP Tuner chip and a 4 inch exhaust and gauges -- I punched the pedal to show off (the truck was not all the way warmed up) and it backfired then ran rough for a while then cleared up. The Service Engine Soon light is still on -- I disconnected the batteries and reconnected them but it is staying lit. I think there is more black smoke then usual. I am about to take a trip. Is this something that I should be concerned about? I do have black soot around the tailpipe.
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