Just a quick question

Just a quick question.

What is the standard manifold vacuum pressure on idle meant to be for the n54 motor?

I've got one of those drivers side half vent gauges. I swear it was reading -18 yesterday, it's now at -13

%d comments
  • And engine fault reduced power just came on. Knew it.

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  • Ideas? Apart from checking vacuum leaks?

  • -19/20 is normal. Yea just check ur vacuum lines

  • I bet it's the bastards next to the oil cooler.

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  • Surprise surprise. Vac lines next to oil cooler split...