Saturn SC2 P Codes (Powertrain) P0400 - P0499 P0401

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1998 Saturn Sc2 Is Throwing P0401 Code.

1998 SATURN SC2
I Have Changed Egr Valve,cleaned Ports, Changed Engine Temp Sensor, Tps,map, Sensor, Plugs,wires.....what Am I Missing Here?
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Asked by tmudge123

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