*video* what would cause this afr problem? please help

Discuss the RB20, RB25 and RB26 series engines.
droptop rb
Posts: 4
Joined: Tue Aug 14, 2012 9:45 pm
Car: rb25 vert

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video shows im getting maf signal voltage back to the ecu and my afr is lean and inconsistant. new o2 and tps both test good. timed the best i could with rough idle for now, pressure tested for boost leak cant find any. tried two ecus and three mafs. (other two mafs show .33 volts at idle) checked plugs,


its an rb25 s1 all stock besides fmic and exhaust

http://youtu.be/uwyaJ4HHjgo


Darius
Posts: 4820
Joined: Sun Mar 02, 2003 9:48 am
Car: RB25DET S14 - 665 WHP (SOLD)
Location: Chicagoland

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Is the car running abnormally other than the AFR being displayed on the innovate wideband? Have you set up the voltage/AFR correlation with the Innovate software?

robbie2883
Posts: 605
Joined: Thu Jun 01, 2006 5:36 am
Car: 1998 RB25 Kouki

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did you do a free air calibration for the wideband?


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