Subject	Ill try as best as I can. The way the clutch and brakes
Posted by	5280Z_nightstalker on April 10, 2011 at 9:56 PM
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In Reply To	Can you explain that again? posted by fcz32 on April 10, 2011 at 08:46 PM
Message	work is you have vaccum lines hooked up to them to make it easier to press on them. There are 2 lines that go to the plenum for the brake booster they hook to the fittings that screw into the side of the plenum if that makes sense. Well my car would start up and run fine for about a minute-minute and a half and then start to idle like garbage and the car would even shake. A boost leak test didnt show any signs of leaks but my buddy swore he heard air at the booster so I decided to "eliminate" the booster from the system in order to see if that fixed it. So if you look at the picture below I took the booster lines (47474 & 30664) off the 47475's then i plugged the 47475's with caps so they didnt leak. Then even though I am pretty sure the booster lines dont need it I stuck a scew in them and made sure they were capped, but this shouldnt be needed I just didnt know at the time if the booster system was getting vacuum from other source. Once thats done you can start the car and it should run like a champ if thats your problem. Mine ran great and I was able to look at my ECU talk and saw the AAC value was at 15 at idle which I read is right and my AFR richened up to 14.7 instead of ~16 at idle which was scaring me since that is really lean. BOOST LEAKS will cause a rich condition because the MAF is reading air before the turbo and the ECU doesnt know its loosing air along the way so its injecting enough fuel for the original number it picked up at the MAF. Vacuum goes the other way and I noticed once I plugged the booster I gained a few more cmHg/inHg (vacuum) which proves a leak more. Sorry for the long post if you need help feel free to email me I can try to help you as much as I can with what I am given. "Do you guys put the key in "balls down", or up?" -BobbyT 10:28:19 03/06/09
Follow Ups	Everyone just a reminder its that time, CHECK FOR LEAKS - 5280Z_nightstalker 17:06:08 04/10/11 Or....don't wait until the last minute to modify. (n/m) - ShakaShaun(Denver) 20:10:03 04/10/11 Can you explain that again? - fcz32 20:46:30 04/10/11 Ill try as best as I can. The way the clutch and brakes - 5280Z_nightstalker 21:56:15 04/10/11 Thanks a lot. - fcz32 00:53:31 04/11/11 Ya yours is a lot more simple but the same concept applies - 5280Z_nightstalker 02:00:25 04/11/11 ok thats what i figured i should do - fcz32 11:12:31 04/11/11 Oh ya another old school trick is you can spray carb cleaner - 5280Z_nightstalker 02:03:19 04/11/11
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