FixVault
Home
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BMW
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1990
›
325is Standard
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Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Controls - Tests W/O Codes
›
Symptoms
›
Poor Fuel Economy
Poor Fuel Economy
Check for leaky fuel injectors.
Check for faulty oxygen sensor.
Check for poor wire connections and fouled spark plugs.
Check for malfunctioning intake system.