My diagnostic reader shows bank 1 is lean on my 1998 E150 van, what could this be?

Asked by blutofish1 Dec 31, 2015 at 01:30 PM about the 1998 Ford E-Series E-150 XLT Club Wagon

Question type: Maintenance & Repair

Running rough

4 Answers
14,385

Guy answered 8 years ago

Vacum leak, misfire, dirty air meter.

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221,015

Rowefast answered 8 years ago

What is the code? Lean condition is too much air, like a vacuum leak, The pcm is trying to compensate by adding more fuel, causing you more grief.

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221,015

Rowefast answered 8 years ago

It is possible, but it would throw a code indicating a problem involving the 02 sensor. I wouldn't want to tell you to just replace it.

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