maxitoman007
Member
- Joined
- Feb 15, 2017
- Location
- Calgary, Alberta, Canada
I am trying to set the idle AFR on my 87 740 Turbo but I would like to make sure I have entered closed loop before I make any adjustments. Is there any way to tell?
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I don't think I can use my wideband gauge on my narrowband sensor. I'm worried that reading it with my dmm is inaccurate due to the idle changing when I back probe the signal wire to read voltage. I will set my amm back to 380 ohms before I start tuning again, does more resistance lean out the mixture? Lastly won't my o2 sensor not fluctuate if it's too rich/ lean? Just hold a high voltage for rich and low voltage for lean? I think my o2 sensor is reading too close to 0.5 to be reading rich/lean. How can you revive a foiled sensor? Propane torch?
Less resistance = leaner mixture