View Full Version : Intake Vacuum line help.
RackCity
02-02-2014, 01:18 PM
Hey guys, im installing a blox tb and manifold on a b18c2 1994
It didnt come with clear instructions so im just using diagrams off the net,
The problem i have is, i dont know where the hose from the top of the charcoal cansister goes, and the hose from the blackbox next to the oil filter.
thanks
IEVAQ8
02-02-2014, 03:46 PM
pics of wat u have and are trying to install...
the bigger hose from the black box (stock catch can) runs thru the runners and there shuld be a biggish port on the intake mani to go to...
u will need to get longer hose...
and the charcoal canister, u can usually throw in the bin, otherwise, most throttle bodies have the port on top like oem
RackCity
02-02-2014, 03:54 PM
Alright thanks, I've got it now but what is this evac solenoid I see in all the diagrams?
IEVAQ8
02-02-2014, 04:17 PM
ni idea, got a pic??
RackCity
02-02-2014, 04:30 PM
http://img386.imageshack.us/img386/2382/gsrvaccumhosediagramoa7.gif
see in that pic, the evap purge control solenoid valve
seems like b18c2 dont have it, is it a usdm thing?
IEVAQ8
02-02-2014, 06:05 PM
U get rid of it since ur changing ur inlet manifold and there no longer is butterflys in the runners...
RackCity
02-02-2014, 06:55 PM
Don't think there ever was that solenoid, is that right?
IEVAQ8
02-02-2014, 07:42 PM
if its a b18c2 engine then it would of had it weather u like it or not...lol
RackCity
02-02-2014, 07:51 PM
im talking about what number 12 is connected to, thats what i dont have
IEVAQ8
02-02-2014, 07:53 PM
dnt worry bout it, like I said, charcoal canister in the bin
RackCity
03-02-2014, 03:04 PM
got everything plugged in and the car is running, only problem is that the car is idling very low at 500rpm and always dips after accelerating
no stalling just very low idle and it drops every gear change and after letting off the gas
could this be due to the tps sensor?
ECU-MAN
04-02-2014, 04:51 PM
could be the TPS, you should check its voltages
did you connect the Fuel Pressure Regulator to vacuum ? it came from item 12 in the pic you posted
RackCity
04-02-2014, 06:46 PM
yeah got rid of the iab and ran the line straight to the manifold
btw the knock sensors not connected as well but vtec still engages and the car drives fine, just the idle issue at the moment and the car running rich
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