Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means that when the car is idling (not moving), the engine is not getting enough fuel on one side, which can make it run rough or even stall.
The engine control module (ECM) detects that the air-fuel mixture is too lean (not enough fuel) at idle on bank 2.
P2189 code indicates that the ECM has detected a lean condition (too much air and not enough fuel) at idle on bank 2 of the engine. Bank 2 refers to the side of the engine that does not contain cylinder 1. This can be caused by a vacuum leak, a faulty fuel injector, or a problem with the fuel delivery system.
• Rough idle
• Engine stalling
• Check Engine Light on
• Vacuum leak on bank 2
• Faulty fuel injector
• Low fuel pressure
ECM: Engine Control Module
Lean Condition: A state where there is too much air and not enough fuel in the air-fuel mixture
• Check for vacuum leaks on bank 2
• Inspect fuel injectors for proper operation
• Measure fuel pressure
• Repair any vacuum leaks
• Replace faulty fuel injectors
• Adjust or replace fuel pump
• OBD-II scanner
• Fuel pressure gauge
• Vacuum gauge
$150 - $500
Moderate
• BMW 3 Series
• Ford F-150
• Chevrolet Silverado
• Regularly check for vacuum leaks
• Maintain fuel system components
• Use quality fuel
Engine Performance
• Avoid driving with the Check Engine Light on
• Get the issue diagnosed promptly
• Perform regular maintenance checks
Check your vehicle's warranty terms for coverage on engine components.
P2189 has been a common code in vehicles with direct fuel injection systems, often related to vacuum leaks or fuel delivery issues.
Moderate – Should be addressed soon to avoid potential engine damage.
Driving with a lean condition can cause engine damage and increased emissions.
• Engine at idle
• Normal operating temperature
Bank 2 is the side of the engine opposite to cylinder 1, typically on V-type engines.
Q: What does 'bank 2' mean?
A: Bank 2 refers to the side of the engine opposite to where cylinder 1 is located.
Q: Can I drive with a P2189 code?
A: It's not recommended to drive for long periods with this code active, as it can lead to engine damage.
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