Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
The cost to diagnose the P1091 MINI code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
Pre-Catalyst Fuel Trim Too Rich Bank 1 is the generic description for the P1091 Mini code, but the manufacturer may have a different description for your model and year vehicle. Currently, we have no further information abouth the P1091 Mini OBDII code.
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