MAP Sensor fits loosly in FAST intake, cause of Vacuum leak?
05-29-2009, 08:22 PM
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MAP Sensor fits loosly in FAST intake, cause of Vacuum leak? the car is popping and the idle is eradic and the only big change is the intake. the MAP sensor fits loosely and i believe its the source of the leak. what do you think? also, how do i fix it? wrap it in teflon tape? better weather tight seal?
05-29-2009, 08:47 PM
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Basically built something out of parts from Menards and Home Deopt.
You'll have to get creative because I can't think of the exact parts those were.
I THINK that's a 6mm bolt though. If you want to try something like this take one of the hex nuts into a hardware store and fit the thread, then pick the length that fits and fab the rest.
05-29-2009, 11:55 PM
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The fix for the MAP is easy and cheap however. Go get yourself some fuel line (can't remember the size, 7/16 maybe?) and trim it to fit on the nipple of the MAP sensor (pull the old orange seal off of course). The fuel hose will be much fatter, and sit snug in the hole creating a better seal. This is what I do on all FAST intake installs and it works perfectly. Never had a vacuum leak problem, and I've actually fixed a few MAP leaks doing this as well on other intakes that weren't installed by me.
Good luck
05-30-2009, 02:16 AM
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Agreed. FAST intakes have some fitment issues they shouldn't have for being an $800 intake.
The fix for the MAP is easy and cheap however. Go get yourself some fuel line (can't remember the size, 7/16 maybe?) and trim it to fit on the nipple of the MAP sensor (pull the old orange seal off of course). The fuel hose will be much fatter, and sit snug in the hole creating a better seal. This is what I do on all FAST intake installs and it works perfectly. Never had a vacuum leak problem, and I've actually fixed a few MAP leaks doing this as well on other intakes that weren't installed by me.
Good luck
The fix for the MAP is easy and cheap however. Go get yourself some fuel line (can't remember the size, 7/16 maybe?) and trim it to fit on the nipple of the MAP sensor (pull the old orange seal off of course). The fuel hose will be much fatter, and sit snug in the hole creating a better seal. This is what I do on all FAST intake installs and it works perfectly. Never had a vacuum leak problem, and I've actually fixed a few MAP leaks doing this as well on other intakes that weren't installed by me.
Good luck
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05-30-2009, 07:14 AM
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Get a 1/4 pipe thread to 1/4 nipple and tap the hole to 1/4 npt no drilling required! Put the plug/nipple in the hole with rtv and use a 1/4 hose to connect to the map sensor( You must renove the orange rubber piece from the sensor) I have done this to two cars and it works great!
