Check Engine Light at start up
Left for trip to West Yellowstone, 100 miles into trip stopped and upon starting check engine light came on immediately. Turned mp-8 off and started and it was fine. This has occurred 3 times on trip out of multiple starts, lots stop & go. Planning on leaving mp-8 off at all starts to see if it occurs without it. Mp-8 does trigger light when climbing high passes 10,000 +, when turned up all the way, this has occurred 3 or 4 times. Not sure what altitude has to do with it, startup check engine occurred at 6000 + feet. Just changed oil (mobil ) filters, oil/fuel (wix), before leaving. Oil pressure hot at idle is around 25-25, at speed around 50. Engine runs great no power loss, good fuel mileage (8), has 48000 miles on c-7. We'll see what happens on return trip, 600 miles.
Any ideas ?
/ Towing Mini Cooper Convertible