Bmurray350z

iTrader: (34)

So I'm looking to sell my Z soon so I started putting it back to stock today. Took off my Motordyne 5/16 spacer, screwed everything back together, disconnected the battery for 15 minutes, connected it and I have a very rough idle? I figured it's just got to learn the air flow or whatever again. Am I right? I checked numerous times for vacuum leaks or anything and everything is in place.

My car has full bolt ons (minus the motordyne spacer now) and uprev tune.

thisishk350

iTrader: (8)

vacuum leak. When in doubt take it all apart and put it back together again, for some strange reason sometimes it works perfectly the second time

Bmurray350z

iTrader: (34)

i've checked for vacuum leaks at least 10 times. everything is snug and in place.

cubs4worldseris

iTrader: (6)

you need to do the throttle body position relearn procedure followed by resetting the ecu.

tylerxfire

iTrader: (15)

u shouldnt have to do anything with the throttle reset or idle relearn or anything because you didnt mess with that but its worth a try i guess...id still say theres a vacuum leak somewhere

jdmchino

reset the computer

Bmurray350z

iTrader: (34)

it drove normal on the ride home, and idle got a little better. im hoping it will be normal when i go to start my car in a few hours.

huyrua

iTrader: (30)

MAF sensor put back on backward??

Massios

Make sure your gasket isn't pinched.

bmccann101

iTrader: (16)

vacuum leak for sure as others have stated.. take maf cleaner and spray around edges of gasket when cars running.. ANY as in even slight increase in rpm is your vacuum leak .