Sensor or air/gas/spark problem

Asked by May 29, 2017 at 05:09 AM about the 2002 BMW 3 Series 325i

Question type: Maintenance & Repair

My 325i seems so bog from time to time
sometime seems like the throttle position sensor
didnt know where the gas peddle is .. i have to
peddle it a few times for it to respond any similar
problem n what what the fix.. thanx in advance

2 Answers

11,675

From what you describe, it sounds like you may have a mass airflow sensor problem. Are there any codes, check engine light on? You could try cleaning it. There is a spray cleaner available for that application.***** The mass airflow sensor (MAF) measures the amount of air entering the intake feeding that data to the ECM. This is what decides your air/fuel mixture. If the air reading is off, it could be causing your bogging issue possibly running too lean.

1,515

I agree, the MAF sensor sounds like a possibility here. Any codes?

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