IACV blocked off?

Discuss the RB20, RB25 and RB26 series engines.
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R32ONP
Posts: 93
Joined: Sun Jun 27, 2010 9:57 pm
Car: R32 Skyline GTS-T
RB20DET
Location: New Zealand

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hey guys is anyone here running their RB with the aac unplugged but still used to bypass air for idle speed but with the IACV fully taken out of the loop???iv red alota other forums saying they take it outa the loop (but u just loose ur high idle wen cold) to get a way more stable/constant idle

just wondering if anyone here is doing this??


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SullivanRacing06
Posts: 1974
Joined: Sat Apr 21, 2007 8:45 am
Car: r32 gtst, 06 350z, r32 gtr, rs4 steaga, 04 350z, f350/6bt
Location: Gainesville

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yes or you can delete both and adjust the idle at the tbody, the motor will drop in rpms when the ac is kicked on tho

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R32ONP
Posts: 93
Joined: Sun Jun 27, 2010 9:57 pm
Car: R32 Skyline GTS-T
RB20DET
Location: New Zealand

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yea i have no a/c it is all pulled out..i have deleted the iacv and it runs way better now..i have the aac valve on but unplugged so im just using the aac as my idle bypass adjustment

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toadx8u
Posts: 264
Joined: Tue Jun 21, 2005 2:27 pm
Car: 1975 Datsun 710(coming soon F20C)
1993 240sx Vert DD
1995 240sx GT3788 RB25DET
1996 240sx LSx 5.3L
2000 F-250 Crew Cab Diesel
2004 Honda RC51
Location: seaford, delaware
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i pulled my whole assembly off and then fabbed up a plate out of some sheet metal to block off the hole

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sickness14
Posts: 667
Joined: Wed Dec 31, 2008 6:16 pm
Car: 95' S14 SE. RB25 Neo. ARP, Tomei 260's, HX40 Pro, PFC, Synapse, Greddy
Location: Raleigh, NC

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toadx8u wrote:i pulled my whole assembly off and then fabbed up a plate out of some sheet metal to block off the hole
Im using my greddy plenum with sentra IACV disconnected.
Trying to get the car to cut fuel on decel is a MAJOR pain in the butt for me right now.
It will cut fuel on decel if i have the TB fully closed, and TPS at .44 volts.
IAC screw is backed almost all the way out but car wont idle by itself. If i set the TB open a little, it'll idle but then doesnt cut fuel on decel.

I do not have a neutral switch hooked up, and my IACV has never worked electronically. Any suggestions? Do i need that neutral switch in there for the IAC to work at all? This is a NEO btw.

Thanks guys!
John


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