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  #37  
Old 02-28-2010, 12:30 PM
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Re: More idle/stalling issue questions

correct me if Im wrong...but when an 02 sensor goes bad...its bad...its not bad one time and not another
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  #38  
Old 02-28-2010, 02:32 PM
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Re: More idle/stalling issue questions

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Originally Posted by 05wkguy View Post
Yes, I'd like to see 02S11 and 02S21,but they need to have the same resolution on the graph (same high and low numbers displayed on the graph)
Gotcha - I think this is what you're wanting to see.

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  #39  
Old 03-02-2010, 10:11 PM
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Re: More idle/stalling issue questions

Looks like the software update helped. Saturday morning, it was still bouncing down to the 400s and back up. Now it seems better with an occasional hiccup. I do wonder if it might be EGR related still. who knows...

Anyway, thanks all for the help!
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  #40  
Old 03-03-2010, 01:15 AM
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Re: More idle/stalling issue questions

Quote:
Originally Posted by Scottina06 View Post
correct me if Im wrong...but when an 02 sensor goes bad...its bad...its not bad one time and not another
Actually you can have a sensor go "lazy" but not neccasarily bad. I've had a couple like that over the past 5 or 6 years. The sensor was working but would not respond like it should,basically not jumping around but sittting at various voltages or not reading as high or low as the other sensor. Caused alot of weird idle and driveabiltiy issues.
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  #41  
Old 03-03-2010, 01:48 AM
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Re: More idle/stalling issue questions

of course it would....the vehicle uses that for its fuel/air mixtures
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  #42  
Old 03-03-2010, 01:52 AM
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Re: More idle/stalling issue questions

yeeeeees.......that's my point. lol
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  #43  
Old 03-03-2010, 01:59 AM
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Re: More idle/stalling issue questions

is theer a way to test the 02 sensors?
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  #44  
Old 03-03-2010, 03:00 AM
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Re: More idle/stalling issue questions

starscan
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  #45  
Old 03-03-2010, 12:53 PM
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Re: More idle/stalling issue questions

Quote:
Originally Posted by blackpepper View Post
starscan
what about for folks that dont have one???? LOL....can you use a meter or ssomething?
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  #46  
Old 03-03-2010, 01:50 PM
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Re: More idle/stalling issue questions

I read some testing procedures in the service manual that don't require starscan. Do you have the manual?
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  #47  
Old 03-03-2010, 02:11 PM
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Re: More idle/stalling issue questions

no....sure dont bro. I was just curious anyway....
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  #48  
Old 03-04-2010, 01:47 AM
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Re: More idle/stalling issue questions

I'm not aware of any specific way to test the sensor but it would make sense to me that if you hooked up one of those "fantastic" cheap a/f guages and watched to see that it danced properly at idle and part throttle. Then it should hold steady at full throttle. If it doesn't "dance" then you've got a malfunctioning sensor. I've personally never tried this but i think it should work.
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