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  1. 0

    09 LMM white smoke

    Does not appear to idle rough or lope. When monitoring rpm’s on scan tool desired vs actual match and remain steady. FRP regulator command is at 39% Desired FRP regulator(mA) 1421 FRP regulator command (mA) 1426 This data was taken at operating temp, idling in park
  2. 0

    09 LMM white smoke

    No known engine work. Only have owned for 1.5yr. Current mileage at 163,169
  3. 0

    09 LMM white smoke

    The ones mentioned were at operating temp and idling in park. I took them again and got the following. Also included is idling in drive with foot on brake. Base injector fuel rate in park is 5-11mm3. Base injector fuel rate in drive with foot on brake is 12-16mm3 mostly favoring 14-15mm3...
  4. 0

    09 LMM white smoke

    I have a 09 Chevy duramax lmm and smokes sometimes on acceleration. Smoke usually white and sometimes black. Truck is not tuned or deleted, completely stock. It has also seemed to be asking for regen more often. IPC states to regen and see owners manual. Performed regen with scan tool and...