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PLX wideband issues

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Old Dec 23, 2007 | 06:55 PM
  #1  
240_to_miata's Avatar
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Default PLX wideband issues

Hey,
Im starting my initial tuning and im having some trouble wiht the wideband. I have a PLX devices wideband o2 sensor and the megasquirt is set to wideband 0-5v. As i drive along (in a very untuned map, but still somewhat smooth) it occasionally is just turning to 19.9:1 ratio and sitting there for a while, no matter where the VE is. The car starts to sputter also and then it usually goes away after a little bit


What is happening?
Old Dec 23, 2007 | 07:11 PM
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You're obviously going lean. Are you sure the PLX output is 0-5v 10-20:1 AFR?
Old Dec 23, 2007 | 07:20 PM
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yup... it actually says PLX in the title on megasquirt

i have a feeling it hit a lean spot and was over correcting cause im an idiot and left the ego correction on and accel when iw as trying to tune.... NOOB
Old Dec 23, 2007 | 09:00 PM
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Originally Posted by 240_to_miata_OWNER
yup... it actually says PLX in the title on megasquirt

i have a feeling it hit a lean spot and was over correcting cause im an idiot and left the ego correction on and accel when iw as trying to tune.... NOOB
I'm glad I'm tuning on my old 1.6 motor because I've made a bunch of stupid *** mistakes.
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