I just threw the vacuum gauge on my M20 in the 325iX and got an alarming 11 reading. I would expect 15-20. Has anyone established a "baseline" for the M20? I don't want to start chasing vacuum leaks if this reading is normal. Thanks
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The only way to "chase intake leaks" is to have a shop run a smoke test.The car makes it possible, but the driver makes it happen.
Jim Levie, Huntsville, AL -
Trust me, I read all the other threads. Much can be learned from a vacuum gauge. Why would I want to pay for a smoke test if I don't need one. A vacuum reading will provide good baseline. I just do t know if 11 is too low for a stock 325i engine. Seems too lowComment
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we need more info. What is your current elevation? also is the engine in closed loop or open?Comment
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I agree with jlevie that you are going about this the wrong way, but referenced off the FPR I was seeing more like 15-18 inHg at a strong idle.Comment
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Bingo! 15-18 That is all I need to know. ThanksComment
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