P289B
Cylinder 3 Ion Current Sense Circuit High
P289B is an OBD-II diagnostic trouble code meaning: Cylinder 3 Ion Current Sense Circuit High. Common causes: cylinder 3 ion current sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.
Symptoms
- Unstable engine operation
- Power reduction
- Check Engine Light Illuminates
- Dips during acceleration
- Increased fuel consumption
Causes
- Cylinder 3 ion current sensor malfunction
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Problems with the engine control module
- Mechanical problems in the cylinder (rare)
How to Fix
- Check the condition of the ion current sensor
- Check the integrity of the wiring and connectors
- Measure sensor resistance
- Check the signal from the sensor with an oscilloscope
- If necessary, replace the sensor or repair the wiring
Related codes
Error P289B by Vehicle Brand
FAQ
What does the P289B code mean?
P289B is an OBD-II diagnostic trouble code that indicates: Cylinder 3 Ion Current Sense Circuit High
What causes a P289B error code?
The most common causes of P289B include: Cylinder 3 ion current sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Problems with the engine control module.
How do I fix a P289B diagnostic trouble code?
To fix P289B: Check the condition of the ion current sensor. Check the integrity of the wiring and connectors. Measure sensor resistance. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P289B?
Yes, but get it checked soon
How much does it cost to fix P289B?
The estimated repair cost for P289B is $28–89. Actual cost depends on your vehicle, location, and labor rates.
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