P2189 fault code: what it means

P2189: Lean at idle, bank 2 (cylinders 4-6 on a straight six).

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

crankcase vent valve or intake leak
injector or fuel pressure fault

P2189 by make

BMW

Lean at idle, bank 2 (cylinders 4-6 on a straight six).

Usual causes: crankcase vent valve or intake leak; injector or fuel pressure fault

What the repair usually costs

High-pressure fuel pump (GDI petrol or common-rail diesel)NZ$1,140–NZ$4,280 · A$1,060–A$3,800

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Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.