RB25 Adjusting Idle, How?

Discuss the RB20, RB25 and RB26 series engines.
User avatar
FinkenS14
Posts: 757
Joined: Sun Dec 14, 2008 4:08 pm
Car: 1995 Nissan 240sx S14
Location: Thornton, Colorado
Contact:

Post

Like the title says? Whats the proper way with a Greddy Intake and stock TB


User avatar
eh?
Posts: 1781
Joined: Sat Jan 24, 2004 2:26 pm

Post

There is a large idle adjustment screw on top of the iacv. Make sure your tps reads .4-.5v at idle.

platez808
Posts: 87
Joined: Thu May 29, 2008 11:30 pm
Car: 1989 Nissan 240SX

Post

well i have stock IM but am wondering the same thing..

my iacv screw is tightened down all the way and the lowest my idle goes is around 1000rpm.. is there any special process or steps i have to take to lower the idle? any other things i have to adjust?

User avatar
eh?
Posts: 1781
Joined: Sat Jan 24, 2004 2:26 pm

Post

Check your timing, tps voltage, make sure the air regulator is getting power and check for vacuum leaks.


Return to “RB20DET / RB25DET / RB26DETT Forum”