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Rough idle problem and can't find solution

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Have you checked for vacuum leaks? Has the check engine light come on? Have you tried a fuel injector cleaner? Have you checked fuel pump pressure?

Let me know.

Joe
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Thursday, March 9th, 2017 AT 2:19 PM (Merged)
Tiny
AGLABANZAT
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  • 2 POSTS
I purchased an OBD2 3100e to check the engine codes. I replaced the fuel filter and received the following codes P0302, P0113, P0122, and P0511. I don't have the tools to check the fuel pressure.
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Thursday, March 9th, 2017 AT 2:19 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
It sounds like the engine is running rich. Have you checked the O2 sensors?
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Thursday, March 9th, 2017 AT 2:19 PM (Merged)

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