P1498: Code Meaning, Causes, Symptoms, & Tech Notes
How to repair P1498 code Exhaust Gas Recirculation Valve Position Sensor Circuit High Voltage

The 05 Mini Cooper doesn't have an EGR valve and when I look up the specific code for it it means, "There is unmetered air after the compressor." This doesn't narrow it down a whole lot. Does anyone have Bentley Repair Manual that can let me know some ways to diagnose this issue?above link worth a readP1498: Code Meaning, Causes, Symptoms, & Tech Notes
How to repair P1498 code Exhaust Gas Recirculation Valve Position Sensor Circuit High Voltagewww.engine-codes.com