Use carb cleaner to spray around the various connections at throttle body - one will go to the brake booster, the other to the charcoal canister. Spray there too. Listen for idle changes.
Once vacuum leaks are ruled out, check fuel pressure.
Does the car suffer from any hesitation on acceleration or perceived lack of power?
It turns out that there is still a leak at the intake, with all new gaskets. One is on the driver's side (left) and one at the PCV plate. I sealed the **** out of the new PCV. Any suggestions?
Is it possible that there is a leak at the oil pipe connections under the manifold? That is the only part that I had trouble with at installation. I have heard people say to push the pipe aft with a flathead. I did not do this.
Last edited by nearle; 06-16-2008 at 10:41 AM.
1995 540i/a 145k
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