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High Fuel Rail Pressure
Hey, The increase in fuel pressure when idling or engine running could be due to an exhaust leak. Given the system rich codes, a possible cause: the fuel control system is adding fuel to compensate for a perceived (not actual) lean condition. This condition is caused by oxygen (air) entering...- chadzrtaylor
- Post #16
- Forum: 2005+ Ford Mustang v6 4.0L Tech
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