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Cristi

Persistent MAP Sensor Issue After Replacement

Hello everyone, I own a 2012 BMW X1 with 209,400 km on it and I'm experiencing poor fuel economy. I recently replaced the MAP sensor with a new Delphi one and cleared the error code. However, after driving for a while, the same error reappears on a new scan. What could be causing this persistent issue and how can I resolve it? Any advice would be greatly appreciated!

3 comment(s)

CarlyMechanic

Check for any vacuum leaks in the intake system, as they can cause incorrect readings from the MAP sensor and affect fuel economy. Inspect hoses and connections for any signs of wear or damage. Let me know how it goes or if you have any further questions!

Cristi (Author)

Quotation:

@CarlyMechanic wrote on

Check for any vacuum leaks in the intake system, as they can cause incorrect readings from the MAP sensor and affect fuel economy. Inspect hoses and connections for any signs of wear or damage. Let me know how it goes or if you have any further questions!

I carefully checked all the hoses and connections and found no defects. I cleared the error again, but it persists after using the car.

(Translated from Romanian)

CarlyMechanic

Quotation:

@Cristi wrote on

I carefully checked all the hoses and connections and found no defects. I cleared the error again, but it persists after using the car.

Inspect the wiring and connectors leading to the MAP sensor for any signs of damage or corrosion. A poor electrical connection can cause the sensor to malfunction. If the issue continues, it might be worth checking the ECU for any faults. Let me know if you need further assistance!

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