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Q: My engine light is on and have spent thousands of dollars to get it resolved. on 2007 Chrysler Aspen

I replaced the O2 sensors, fuel pump,intake manafold, exhaust manafold, exhaust,and now the computer. Still have the same problem lean on bank 1.... What else can it be?
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sounds like a vac leak on bank 1 did you have a smoke test done lately.that may show you a small leak poss under dash or poss mass air flow sensor. did you do the work or a shop?
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Perhaps its time to have a good technician do the diagnostics and fix the problem. Not anything I could tell you other than guessing at parts to replace and that has not worked so far.
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