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Registered
2001 Forester 4EAT
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156 Posts
Discussion Starter #1
Does anyone know what the ECU "expects" to see from the rear O2 sensor? Before installing the spacer to solve the P0420 code, I was seeing around .8 volts at highway speeds and after, no higher than about .750v

This is a small decrease, but it still averages much lower. I have a few spare O2 sensors laying around from friends that I can try. What is the range that I'm looking for here?

Thanks as always!
 

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Registered
2001 Forester 4EAT
Joined
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156 Posts
Discussion Starter #4 (Edited)
Seems that the Pony Express module no longer exists from a quick Google'ing, I've located these specs for the resistor and a capacitor:

"You can use a .5 watt resistor 1 meg ohm and 1.1micro ferid capacitor"

Anyone able to confirm this and shed a little more light on this?

[edit] Oops, I lied... I found more info to chew on [/edit]
 
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