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**polarisman14** · 07-03-2009, 10:12 AM

I'll do that also, thanks for the heads up--scott (greentengu) just found an issue with his TB gasket that led to crappy driveability as well. The thing that doesn't make any sense to me is that typically when you have a vacuum leak, doesn't it cause the RPMs at idle to go up? I remember when testing my previous turbo setup a vacuum line popped off and the rpms were about a thousand higher than normal at idle. Currently, they are right at the normal idle rpm but it idles like a lumpy cam. I just don't get it.

07-03-2009, 10:12 AM	#5 (permalink)
polarisman14 Senior TEAM Member Join Date: Aug 2006 Location: Henniker, NH Posts: 3,941	Re: Vacuum leak/Loss of power...Help! I'll do that also, thanks for the heads up--scott (greentengu) just found an issue with his TB gasket that led to crappy driveability as well. The thing that doesn't make any sense to me is that typically when you have a vacuum leak, doesn't it cause the RPMs at idle to go up? I remember when testing my previous turbo setup a vacuum line popped off and the rpms were about a thousand higher than normal at idle. Currently, they are right at the normal idle rpm but it idles like a lumpy cam. I just don't get it. __________________ --UnFocused1-- AKA >>Matt<< --01 Focus "FCS-PWR" 350+whp Work-In-Progress-- <03 Ranger 4.0L "SKIGOD" DD: CAI, custom side exhaust, audio> >86 Ninja 250R "GOPED" 50+mpg bullet: Slip-ons, Pod filters, Jet kit, LED signals, custom plate bracket<