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Loss of power, ECM light is on

Tiny
OREGGIE
  • MEMBER
  • 2008 CHRYSLER SEBRING
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 220,000 MILES
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.
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Sunday, July 14th, 2019 AT 2:25 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
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.

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Monday, July 15th, 2019 AT 5:45 PM
Tiny
JUICE614
  • MEMBER
  • 1 POST
Which ECU, ECM fuses on my car listed above?
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Saturday, September 14th, 2019 AT 6:08 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Please post your new question here, you must be logged in.

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

Cheers, Ken
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Monday, September 16th, 2019 AT 10:28 AM

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