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2003 A4 1.8T Quattro Electrical issues

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2003 A4 1.8T Quattro Electrical issues

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Old 12-26-2017, 11:40 PM
1st Gear
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Join Date: Dec 2017
Posts: 1
Default 2003 A4 1.8T Quattro Electrical issues

I'm new to Audi's I've always owned Honda's and have done my own Harness wiring on many projects. But This Audi has me baffled. I got it for a hell of a deal and would like it to be my daily.

The car does run and all electronics work in the cabin.
It idles rough obviously though It was picked up and driven over 100 miles to me.

This is the list of codes. I'm thinking it's a ground or somewhere. Any suggestion where to start?

17834 Evap Purge Valve (N80) Open Circuit P1426 No Signal/No Communication
17526 O2 Sensor Heating Bank 1 Sensor 2 Open Circuit p1118 No Signal/No Communication
17841 Secondary Air Pump Relay (J299) Open Circuit P1433 No Signal/No Communication
17829 Secondary Air Injection Solenoid Valve (N112) : Short to ground
17697
17881
16487
17522
17771
16621
16490
18321
17524
16683
18107
18043
18058
 
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