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Thread: Car running lean and rich????

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2013-08-16 17:27:20
Car running lean and rich????
Well here is the problem....

My car has been acting weird for some time, I thought it was the MAF however I replaced it this week and that did not fix it.

The car runs extreamly lean when I have the o2 sensor plugged in. The wideband reads 18.0-19.5 at idle, 16.0-17.0 at light throttle and 15.0-15.4 at WOT.

With the o2 sensor unplugged I get. 14.4-15.4 at idle, 14.0-16.3 at light throttle and 14.0-15.0 at WOT.

I have replaced the o2 sensor, MAF, TPS, wideband sensor, recalibrated the wideband and ECU. Im not sure where to go from here.

The car is a 96 200sx SE-R with a 98 sr20 in it. The car is stock for the most part just a few bolt ons.
Last edited by D-Unit121 on 2013-08-16 at 17-41-40.
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