1998 Ford Expedition MAF Sensor/ Checking MAF sensor

1998 FORD EXPEDITION
207,700 MILES • V8 • 4WD • AUTOMATIC
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KEVINJRGASTON
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What's an easy and good way to check the MAF sensor on a Ford Expedition 5.4L? It has thrown a code about reading too lean, I dont remember the code number, but it was reading too lean on Bank 1. I did a little research and found that the most common cause is a bad/dirty MAF sensor. I just cleaned it, but it is still idling higher than it used to, but no check engine light after I had it erased.
Aug 10, 2010 at 11:26 AM
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JACOBANDNICKOLAS
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If it isn't setting the same code, I think you fixed that problem. I have to say this, the MAF will not only affect one bank of the engine. It will have an effect on both. How high is it ideling at this point?
Aug 10, 2010 at 11:22 PM
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KEVINJRGASTON
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Between 1&1.5
Aug 11, 2010 at 7:58 AM
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JACOBANDNICKOLAS
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1K isn't too bad, but above that is getting high. To provide the testing info, I need to know the exact engine size, 4.6 or 5.4L and the original code PO102 or PO103.
Aug 11, 2010 at 9:43 PM
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KEVINJRGASTON
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P0102 and 5.4
Aug 11, 2010 at 10:17 PM
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JACOBANDNICKOLAS
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I looked it up for you but you need specialized equipment to check it. It is about 4 pages long of tests.
Aug 11, 2010 at 11:03 PM