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320xi
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Repair and Diagnosis
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Engine Performance
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Testing & Diagnosis
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Self Diagnosis - Diagnostic Trouble Codes (N20 & N26)
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Fault Code Tests
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DTC P3159: BMW DTC 110404; DME -- Cylinder 4 High Pressure Injector High Side Circuit High
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Action in service
Action in service
Check wiring harness between DME and fuel injectors 1 and 4
Replace injector 4, if the fault persists, install the new injector at cylinder no. 1