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Home >> Jeep >> 2004 >> Wrangler SE, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Emissions Control System >> Emissions Control >> Description >> Fuel Pressure

Fuel Pressure

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The fuel pressure regulator controls fuel system pressure. The PCM cannot detect a clogged fuel pump inlet filter, clogged in-line fuel filter, or a pinched fuel supply or return line. However, these could result in a rich or lean condition causing the PCM to store an oxygen sensor or fuel system diagnostic trouble code.