Rich AFR at Idle. Please assist me

supraguy31

New Member
May 10, 2005
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Pembroke, NC
Ok all, Im at my end with this Issue. Everything that I have done so far has failed to correct this.

Im going to list a few setting in hope that someone can lead me in the correct direction.

Maft Pro with correct Software.
Mainscale set to -25
AF Voltage is reading 2.7v to 3.0v at Idle which is correct
TPS voltage for Q45 Throttle body is sitting on .39v
Vehicle RPMs are 680-700which is fine
The vehicle Idles great.....

Problem is that at Idle my AFR is 12.3 per wideband and I have done everything known to man to correct this. only other thing I can think of is that my O2 sensor might be bad but if that was so I wouldnt get any reading correct?. All my settings in the MAFT Pro are set to the correct Manufactor settings for the vehicle and I have even Updated to V5.22. Can someone, Anyone give me some Direction on what the Problem is. yes its pretty rich smelling but I cant get this to higher than 13.6 and this is with the mainscare adjusted to -48

anything will help right now.

Thanks
Robert

Someone please help me out here.