240 concerns - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

bshotts · 12-29-2004, 08:19 AM

yeah i am tapped into the intercooler line from the cold pipe running back to the waste gast........anyway, you think recirc the bov will def help the rich run condition??

also, i know the boost gauge is good because:

1) it is new as of christmas day
2) i sucked on the nylon tube going into the gauge just to see if i could get a vac reading haha

the head · 12-29-2004, 08:47 AM

yes you have to remember that all air in the system is metered so the ecu sends fuel for the metered amount of air atmosphering a recirc valve allows it to vent air that the ecu has already sent fuel for causing rich run/rough idle situations due to an overabundence of fuel for the amount of air that actually reaches the motor

bshotts · 12-29-2004, 09:04 AM

ahhhh it's becoming a little more clear now......

i just have a hard time seeing how that much air can have such a negative effect on fuel delivery and gas consumption.....but thanks anyway

well where do i need to route the air back into?? the intake tube right??
after the maf or before?? after makes sense to me

the head · 12-29-2004, 10:31 AM

after the maf

who did your install? and will they be able to make repairs if the car breaks?

bshotts · 12-29-2004, 11:12 AM

Modern Speed Labs here in Indianapolis did the install for me.......know/heard of them?

the head · 12-29-2004, 12:34 PM

i am rather supprised a shop would leave the recirc atmosphered

12-29-2004, 08:19 AM	#1
bshotts Zilvia Junkie Join Date: Jan 2003 Location: Indianapolis, IN Age: 42 Posts: 472 Trader Rating: (13) Feedback Score: 13 reviews	vac reading yeah i am tapped into the intercooler line from the cold pipe running back to the waste gast........anyway, you think recirc the bov will def help the rich run condition?? also, i know the boost gauge is good because: 1) it is new as of christmas day 2) i sucked on the nylon tube going into the gauge just to see if i could get a vac reading haha

12-29-2004, 08:47 AM	#2
the head Nissanaholic! Join Date: Jul 2002 Location: in a dark room mastering the art of typing with one hand Posts: 2,164 Trader Rating: (3) Feedback Score: 3 reviews	yes you have to remember that all air in the system is metered so the ecu sends fuel for the metered amount of air atmosphering a recirc valve allows it to vent air that the ecu has already sent fuel for causing rich run/rough idle situations due to an overabundence of fuel for the amount of air that actually reaches the motor __________________ I never knew you could do that with an eggplant

12-29-2004, 10:31 AM	#4
the head Nissanaholic! Join Date: Jul 2002 Location: in a dark room mastering the art of typing with one hand Posts: 2,164 Trader Rating: (3) Feedback Score: 3 reviews	after the maf who did your install? and will they be able to make repairs if the car breaks? __________________ I never knew you could do that with an eggplant

12-29-2004, 12:34 PM	#6
the head Nissanaholic! Join Date: Jul 2002 Location: in a dark room mastering the art of typing with one hand Posts: 2,164 Trader Rating: (3) Feedback Score: 3 reviews	i am rather supprised a shop would leave the recirc atmosphered __________________ I never knew you could do that with an eggplant

12-29-2004, 09:04 AM	#3
bshotts Zilvia Junkie Join Date: Jan 2003 Location: Indianapolis, IN Age: 42 Posts: 472 Trader Rating: (13) Feedback Score: 13 reviews	ahhhh it's becoming a little more clear now...... i just have a hard time seeing how that much air can have such a negative effect on fuel delivery and gas consumption.....but thanks anyway well where do i need to route the air back into?? the intake tube right?? after the maf or before?? after makes sense to me

12-29-2004, 11:12 AM	#5
bshotts Zilvia Junkie Join Date: Jan 2003 Location: Indianapolis, IN Age: 42 Posts: 472 Trader Rating: (13) Feedback Score: 13 reviews	Modern Speed Labs here in Indianapolis did the install for me.......know/heard of them?