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Ford 5.4 lean codes
Posted to Technical Discussion Forum on 6/15/2011 3 Replies

Howdy folks,

Just wanted to get this in the system archives.

We had an '07 Linc. Naviogator with a 5.4. Check engine light on with lean codes stored in PCM and LTFTs at +25. Found the usual PCV elbow rotted. Replaced, reset fuel trims and cranked it up -- ... Login to read more.

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