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Shows lean. Every time this happens I cleans the mas sensor and it’s good for about 4-6 tanks. Thinking it might be time to change it. Thoughts? Texas has has a lot of ethanol.
Shows lean. Every time this happens I cleans the mas sensor and it’s good for about 4-6 tanks. Thinking it might be time to change it. Thoughts? Texas has has a lot of ethanol.
Lean conditions can also be caused by a vacuum leak.
98 navigator both banks lean. Sorry for lack of information. I work a lot
That's okay, you're still welcome in "The Neighborhood."
At the back of the upper intake there is a rubber elbow that supplies vacuum to the PCV system. This elbow is a known issue for cracking and causing a vacuum leak.
