RB0DET leaning out

Discuss the RB20, RB25 and RB26 series engines.
Scram
Posts: 39
Joined: Thu Nov 29, 2007 12:48 pm
Car: 1992 Nissan Skyline GTS-4

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Hey Everyone,

I have an AEM UEGO Wide Band and AEM Tru Boost. I'm running about 10.5 lbs of boost and my wide band hits 15+:1. Needless to say, I'm leaning out. I have a stock turbo (T25 I think? - can anyone verify that's what comes stock?).

Anyway, I was hoping to avoid the expense of injectors and/or fuel pump.

Does anyone have any ideas how I can bring me down to around 12.5:1 or 13.5:1?

I think Stoichometric is like 14.7:1. I just learned about this stuff since getting these new gauges, I think I understand, but if I'm not asking the right question, I accept all advice!

Thanks everyone!-Scram


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Carl H
Posts: 5985
Joined: Mon Aug 04, 2003 4:09 am
Car: 1995 Nissan 240SX SE RB30DET

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where did you put the wideband sensor?

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WhatsADSM
Posts: 496
Joined: Fri Jun 10, 2005 5:27 pm
Car: 1998 240sx

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15:1 while at WOT or 15:1 while cruising?

Scram
Posts: 39
Joined: Thu Nov 29, 2007 12:48 pm
Car: 1992 Nissan Skyline GTS-4

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WOT. I'll have to see where the technician put it. The location question sounds interesting. What is the best place to put it?

onepuff
Posts: 234
Joined: Thu Dec 21, 2006 9:16 pm

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wideband sensor should be a few feet after the turbo. The high temps in the turbo elbow will kill a wideband sensor quick.

craz4240
Posts: 738
Joined: Wed Sep 13, 2006 4:23 pm
Car: 1995 240sx w/rb20det
Contact:

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onepuff wrote:wideband sensor should be a few feet after the turbo. The high temps in the turbo elbow will kill a wideband sensor quick.
True story..prolly why my car is so ****ed up.


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