catalyst

  1. hawkman71

    Flashing check engine light upon hard acceleration. P2096 only code: "Post cat fuel trim sys too lean bank 1"

    Hi y'all. I did a search on this forum for "P2096" as well as the full message in the thread title (post catalyst system too lean bank 1) and haven't found what I need. I have a 2011 Exped with only 150k on it that has given us its fair share of problems over the years. However, when it runs...
  2. B

    Cylinder 4 misfire plus EVAP System Monitor and Catalyst Monitor won't complete cycle

    I have two 1999s 5.4s. One I've had for over 20 years and the second one for about 5 years. They both have the exact same problem: 304 code (cylinder 4 misfire). The other clue is that the trip cycles won't complete for the catalyst monitor and the evap system monitor. Expy #1 is the one...

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