rb25 running rich, q45 throttle body iacv?

Discuss the RB20, RB25 and RB26 series engines.
lazyeyes13
Posts: 46
Joined: Mon Feb 10, 2014 8:41 pm
Car: 1991 s13 hatch rb25det
1989 s13 hatch
2004 g35 coupe

Post

I have a s1 rb25 with a greddy intake and q45 throttle body and a fmic. its running super super rich...

Fuel mixed with oil

rough idle... (after reving up, it is not able to catch itself, goes very low then back up and fluctuates)

cutting out... (during driving when I get into it sometimes it will cut out and I will have no throttle response whatsoever, but it doesn't happen everytime)

My q45 throttle body seems to be missing the iacv? Im not sure where it even goes...
Anyone have pics for correct setup?

Any ideas why its running rich?

Any help would be greatly appreciated


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