Loss of power, ECM light is on

2008 CHRYSLER SEBRING
220,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
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OREGGIE
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Rough idle with shaky engine and rpm's at 1,500-2,000. ECM light is on. Car won’t accelerate past 20-30 mph and gets there very slowly. Engine diagnostic came back with p0456 and p0457 which shouldn’t be causing this issue. I changed the spark plugs and put gas cleaner through the tank. Pushing the accelerator to the ground does not increase rpm’s unless in park.
Jul 14, 2019 at 2:25 PM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,837 POSTS
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Hello,

It sounds like the throttle bore has lost correlation with the PCM due to coking which will cause the car to be in limp mode.here is a guide to help fix it:

https://www.2carpros.com/articles/reduced-power-limp-mode

Please run down this guide and report back.


Jul 15, 2019 at 5:45 PM
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JUICE614
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Which ECU, ECM fuses on my car listed above?
Sep 14, 2019 at 6:08 PM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,837 POSTS
  • ASE Certified Mechanic
Please post your new question here, you must be logged in.

https://www.2carpros.com/questions/new

Cheers, Ken
Sep 16, 2019 at 10:28 AM
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