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Hello and welcome! My name is ***** ***** I can assist you with your question. What is the engine vacuum at idle and at 2500 rpm?
Ok, no problem. I can wait until you run this test and report back. It does not have to be done today. I will be looking forward to your reply.
Hello! I understand what your trying to explain to me. I have experienced this many many times and I am very good at diagnosing this sort of issue. Was the muffler replaced? If not that can cause this issue as well if it is plugged up. There is no code for "Plugged muffler"