Removing Secondary Vacuum System questions. - ZR-1 Net Registry Forums

DScott600 · 08-09-2009

I have a chip from the ZR1 Specialist for my 91 and decided to get the option for the chip that eliminates the need for the secondary vacuum system. According to Marc I can remove all of the secondary vacuum lines and just leave the sensor under the ECM exposed to the atmosphere. My question is after removing the vacuum lines, the solenoid and canister what should I do with the line that runs into the drivers side of the plenum? Does this line now need to be plugged? Also is there a better way to tie the secondaries open besides just using wire ties? Or is there a good way to remove the throttle plates with the injector housings still in without dropping anything into the engine? Later I am planning on getting the top end ported and removing the shafts and all.

08-09-2009	#1
DScott600 Join Date: Aug 2008 Location: LaFayette, GA Posts: 31	Removing Secondary Vacuum System questions. I have a chip from the ZR1 Specialist for my 91 and decided to get the option for the chip that eliminates the need for the secondary vacuum system. According to Marc I can remove all of the secondary vacuum lines and just leave the sensor under the ECM exposed to the atmosphere. My question is after removing the vacuum lines, the solenoid and canister what should I do with the line that runs into the drivers side of the plenum? Does this line now need to be plugged? Also is there a better way to tie the secondaries open besides just using wire ties? Or is there a good way to remove the throttle plates with the injector housings still in without dropping anything into the engine? Later I am planning on getting the top end ported and removing the shafts and all.