RB25 question, running very rich now at random times.

Discuss the RB20, RB25 and RB26 series engines.
b00stinbmx
Posts: 158
Joined: Tue Dec 23, 2008 5:23 pm
Car: 1990 240sx hatch rb25det. drift slut

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So i threw on a greddy type rs bov and took off the recirc. It runs ok, sometimes wants to die out when u throw it in neutral, from what im gathering its not going to stop doing that till i switch to blow through. anyway, the car is running a lil more rich than normal at very random times. crusing its still fine. afrs around 15.5, full boost prob low 11s, high 10's.. but when its warm and i let it idle its anywhere from 16 to 10.5, its very random. I've checked over all lines for anything loose, or any loose couplers, can't find ANYTHING. the wierd part is i threw the recirc valve back on and the car still did it. so im not sure what i touched or what happened but it started with the put the type rs on but now its doing it no matter what. this is driving me nuts cause the car was running absolutely perfect before, any idea? :gotme


b00stinbmx
Posts: 158
Joined: Tue Dec 23, 2008 5:23 pm
Car: 1990 240sx hatch rb25det. drift slut

Post

uh anyone?

240z4u
Posts: 2071
Joined: Mon Feb 21, 2005 4:47 am
Car: '95 Nissan 240SX

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Pull the vac. line off the greddy and see if the problem goes away. That valve may hang open during some situations (I think it is supposed to)

Evan


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