look at these screen shots of the o2s, are they ok?
07-20-2005, 07:03 PM
#1
look at these screen shots of the o2s, are they ok? ok well i just put some new o2s in and im not sure if it really did anything helpful, number one is the new o2s and number 2 is the old ones. are the o2s suppose to oscillate evenly or just go everywhere and anywhere?
07-20-2005, 08:10 PM
#2
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To me these look "lumpy" and underheated. The hot O2
sensor in a normal fuel-dithering setup will have a more
symmetric character to it.
Yours appears to be "somewhere in the middle", to me.
sensor in a normal fuel-dithering setup will have a more
symmetric character to it.
Yours appears to be "somewhere in the middle", to me.
07-20-2005, 08:37 PM
#3
both of those were at idle and the car had not been driven just warmed at idle. the first one is iwth brand new densos, vette rears. and the others were stock fbody ones that were about a year old. i do have headers as well if that help things. im just wondering if i should make some changes to the proportional fuel to get them moving more or something. looks to me like the stock ones were hanging too long rich and lean. i dont know kinda frustrating, need to get a wide band and take the damn o2s out
07-20-2005, 09:18 PM
#4
jimmy, is that how it is suppose to look part throttle?
when i go through throttle transitions or sit in the drive way and hhold at 2000 rpm, they dont like to move so much really, at idle i guess they are decent but nothing like what you had, so what is your screen shot of? part throttle?
when i go through throttle transitions or sit in the drive way and hhold at 2000 rpm, they dont like to move so much really, at idle i guess they are decent but nothing like what you had, so what is your screen shot of? part throttle?
07-21-2005, 01:22 PM
#7
What I have noticed from my O2 readings is that they will oscillate when part throttle driving, more so when cruising. At idle, they are erractic, holding the rpms in park causes them to oscillate, but not very frequently as in cruise. I'd say give them a good drive and log that info. That should really say how the O2 are functioning.
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07-21-2005, 09:12 PM
#9
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I would agree with Jimmy, I think. I have been wondering with my O2 sensors how fast they are supposed to switch. Mine seam to switch slow, but have good amplitude on the peaks 
