P2189
System Too Lean at Idle Bank 2
P2189 is an OBD-II diagnostic trouble code meaning: System Too Lean at Idle Bank 2. Common causes: intake manifold vacuum leak (bank 2), dirty or faulty mass air flow sensor (maf). Estimated repair cost: $17–89.
Symptoms
- Unstable engine idling
- Increased vibrations
- Reduced engine power
- Increased fuel consumption
- Check Engine Light Is On
Causes
- Intake manifold vacuum leak (bank 2)
- Dirty or faulty mass air flow sensor (MAF)
- Fuel pump malfunction or clogged fuel filter
- Problems with the oxygen sensor (lambda probe) bank 2
- Leaks in the air intake system after the mass air flow sensor
How to Fix
- Check for vacuum leaks in the intake tract (bank 2)
- Check the condition and readings of the mass air flow sensor
- Check fuel pressure and condition of fuel filter
- Check the functionality of the oxygen sensors of bank 2
- Scan the system for other errors
Related codes
Error P2189 by Vehicle Brand
FAQ
What does the P2189 code mean?
P2189 is an OBD-II diagnostic trouble code that indicates: System Too Lean at Idle Bank 2
What causes a P2189 error code?
The most common causes of P2189 include: Intake manifold vacuum leak (bank 2); Dirty or faulty mass air flow sensor (MAF); Fuel pump malfunction or clogged fuel filter; Problems with the oxygen sensor (lambda probe) bank 2.
How do I fix a P2189 diagnostic trouble code?
To fix P2189: Check for vacuum leaks in the intake tract (bank 2). Check the condition and readings of the mass air flow sensor. Check fuel pressure and condition of fuel filter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2189?
Yes, but get it checked soon
How much does it cost to fix P2189?
The estimated repair cost for P2189 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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