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#1
10-07-2015, 01:05 PM
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Reset the throttle body adaptations, if you haven't changed your spark plugs I would do so preventatively since your mileage around 100k is fine to do so.
I had a random stumble one morning in the spring, it ran like crap until I shut it off and restarted, has run fine ever since. Have you run a bunch of fuel system cleaner lately?
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2018 Ram 2500 6.7L Cummins 68RFE 19k miles -Bright White/Black - Big Horn Sport - Crew Cab Short Bed 2013 X5 35D (CEO's) - Born on 5/17/2013 - 82k miles - Alpine White/Cinnamon Brown/Premium Pkg, Sport Activity/Premium Pkg and Sound/20" Style 214/Running Boards 
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#2
10-07-2015, 01:21 PM
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Thanks trader4, Ricky Bobby:
The scanner is a PWOW ELM327 wifi unit with the OBD Fusion app on an iPad. Spark plugs were changed 20K miles ago. I had run SeaFoam through about 5k miles ago, and my indie shop ran BG K44 through about 3k miles ago. The X5 seemed to run slightly better when the additive was in the tank... Instructions to reset the throttle body adaptations? UPDATE: Found this --> With the car off, turn the ignition to the on position(posit. 2) for 10 seconds(do not start) then turn the ignition off for 10 seconds. Then start the car. Also - can the ELM327 wifi be hooked up to a laptop via wifi and use INPA compatible s/w? Last edited by Rookie48; 10-07-2015 at 01:40 PM.
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#3
10-08-2015, 12:45 PM
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Update on this issue:
I reset the throttle body adaptations yesterday, drove to home (~35 miles, 99% highway). No codes thrown, truck ran fine (no noticeable difference after throttle body adaptation reset). Drove to work this AM, no codes, no issues. I did have another train of thought on this --> the truck uses about 1 quart of oil per 1100-1500 miles. I had just topped off the crankcase (to full level on dipstick) before this all started to happen. In the first 200 miles since topping the oil off, it lost 1/2 quart (no drips, no leaks, out the exhaust I assume). Could the engine somehow, under high vacuum conditions, be sucking oil into the intake when the crankcase is at full level, and thus the issues of misfire could be caused by a short-term fouling of the plugs? That would not suggest why the codes are showing misfire on all cylinders however... and the truck did not smoke when running rough... Confused... 
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#4
12-07-2015, 06:06 PM
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Update on this:
Misfires returned after the adaptations reset... Replaced fuel pump, fuel filter, and regulator. No change. Replaced CCV valve. No change. New plugs, coils. No change. New O2 sensors. No change. Removed OEtune flash (simply to rule it out). No change. (Actually misfires more now!). New DISA. No change. Replaced throttle body. No change. Smoke tested three times. No leaks. No change. WTF!! About ready to drive this truck into a pond/lake!! Still only P0300 - P0306 codes begin thrown... (Oil consumption has dissipated since CCV replacement. Was only 20K miles on the replaced CCV)
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