Ford Repair Questions? Ask a Mechanic for Answers ASAP
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Here are the three most likley possible causes
1. Mass air flow sensor
2. Low fuel pressure
3. Plugged exhaust.
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What is the oxygen sensor readings at under a load?
How about exhaust back pressure or fuel pressure?
Right, this is most likley caused by a sever lean condition.
You can also check the air intake snorkle from the mass air flow sensor to the throttle body to ensure it is not cracked or ripped in anyway.
Check the fuel pressure.
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