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How to Solve P1101-00 Intake Flow System Performance Issue?

1 Answers

McConnor

07/29/25 11:05am

p1101 intake flow system performance fault may be caused by an air leak in the intake system or a damaged air flow meter. It is necessary to check whether there is any air leakage in the pipeline between the air flow meter and the throttle body. To determine if the air flow meter is damaged, you can unplug its connector. If the car can start normally, then the air flow meter is damaged. Below are the relevant details: 1. Under normal circumstances, the data flow of the air flow meter should be around 2.5g/s. If it is below 2.0g/s, it indicates an air leak in the intake system, while a reading above 4.0g/s suggests there is some pressure in the intake system, meaning an additional load. 2. Common causes of a faulty air flow meter include short circuits, open circuits, or abnormal intake air signals. These three conditions can all lead to abnormal fuel injection, resulting in either too rich or too lean a mixture, which can cause poor engine operation or a decrease in power.

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