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How do I troubleshoot a faulty throttle body in an Audi A2?

My Audi A2's engine is stalling and the check engine light is on. After doing some research, I suspect that the throttle body may be the problem. Can anyone provide guidance on how to troubleshoot and possibly fix the issue?

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The first step is to use an OBD2 scanner to see what error codes are being thrown. You can then use a multimeter to check the throttle body's resistance and compare it to the manufacturer's specifications. If it is out of range, you may need to replace it.

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