This bulletin announces availability of reprogramming files to optimize the ECM. These files enhance...
Subaru technical service bulletin 11-186-18 for 2014 Subaru Impreza.
- Bulletin number
- 11-186-18
- Component
- Electrical system
- Summary
- This bulletin announces availability of reprogramming files to optimize the ECM. These files enhance detection of DTC P0300: RANDOM/MULTIPLE CYLINDER MISFIRE DETECTED. If a customer presents with a rough idle concern and / or hesitation after a cold start when using winter-blend fuels, reprogram the ECM following the normal FlashWrite procedure. The new logic contains revised A/F, ignition timing and alternator controls designed to prevent an over-lean fuel mixture condition at cold start and stabilize the engine idle.
Owners of these vehicles have filed 17 complaints in the electrical category.
Vehicles covered
- Subaru Impreza 2014 2014
VIN decoder
See the problems and recalls for an exact car
Buying a used Subaru Impreza?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history