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Anyone know what these fault codes mean?

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Old Nov 2, 2004 | 10:53 AM
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washparkS4
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Default Anyone know what these fault codes mean?
are the o2 sensors bad or is it the wiring harness? if its the harness which one is it? This is for a 97 A4 2.8 auto.

17817 - EVAP Purge Valve (N80): Electrical Malfunction
P1409 - 95-00 - Unknown Error Elaboration
17808 - EGR Valve (N18): Electrical Malfunction
P1400 - 95-00 - Unknown Error Elaboration
17919 - Intake Manifold Valve (N156): Electrical Malfunction
P1511 - 71-00 - Cylinder 4
16545 - Oxygen (Lambda) Sensor B2 S2: Heating Circuit Malfunction
P0161 - 92-00 - Unknown Error Elaboration
16525 - Oxygen (Lambda) Sensor B1 S2: Heating Circuit Malfunction
P0141 - 92-00 - Unknown Error Elaboration
16539 - Oxygen (Lambda) Sensor B2 S1: Heating Circuit Malfunction
P0155 - 92-00 - Unknown Error Elaboration
16519 - Oxygen (Lambda) Sensor B1 S1: Heating Circuit Malfunction
P0135 - 92-00 - Unknown Error Elaboration

TIA
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Old Nov 2, 2004 | 04:26 PM
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This looks more like a problem with the power suply... relays checked?
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Old Feb 26, 2006 | 04:09 PM
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wow, I just pulled all of these exact codes.. WTF???
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