o2 sensor voltage to check if engine is running lean/rich??
06-21-2002, 11:17 AM
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o2 sensor voltage to check if engine is running lean/rich??
I'm using an safc and i connected the blue wire to the o2 sensor wire on the ecu, to read the voltage. how do i know (from the voltage of the o2 sensor) if i'm lean or rich?
idle: .97 volts
wot: 3.0 volts
how do i know whether this is lean or rich?
[Modified by LS-G, 8:18 PM 6/21/2002]
idle: .97 volts
wot: 3.0 volts
how do i know whether this is lean or rich?
[Modified by LS-G, 8:18 PM 6/21/2002]
06-21-2002, 07:01 PM
#3
Honda-Tech Member
Re: o2 sensor voltage to check if engine is running lean/rich?? (LS-G)
that's impossible
o2 voltage goes to 1V MAX.
so rich is anything over 900mv lean is under 300mv. stoich is about 500-600mv and optimal power should be around 800mv at WOT
i did the same trick with the S-AFC like you did.......you must have it on the wrong wire man.......
o2 voltage goes to 1V MAX.
so rich is anything over 900mv lean is under 300mv. stoich is about 500-600mv and optimal power should be around 800mv at WOT
i did the same trick with the S-AFC like you did.......you must have it on the wrong wire man.......
06-21-2002, 08:11 PM
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Re: o2 sensor voltage to check if engine is running lean/rich?? (non-VTEC)
i have the blue wire (coming from the safc harness) connected to the bigger diameter white wire on the ecu. i heard that is the correct wire, but that may be for a different car. What wire are you connected to?
btw, thanks for posting.
[Modified by LS-G, 5:11 AM 6/22/2002]
btw, thanks for posting.
[Modified by LS-G, 5:11 AM 6/22/2002]
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