Pretty sure I already know the answer to my question but figured I'd go ahead and ask anyway.
I had a dumb behind attack and ran my engine with the o2 sensor un-powered for a total of about 30 minutes. Now I'm getting readings that seem different than before like; rich under deceleration, lean under acceleration, lean under wot, etc...
Is my sensor toast?
I'm not currently controlling anything just data logging how the current carburetor behaves.
Thanks,
Andrew
Ruined wideband o2 sensor?
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Read the manual to see if your question is answered there before posting. Many users will not reply if the answer is already available in the manual.
If your question is about troubleshooting, configuration, or tuning, you MUST include your processor type (MS-I or MS-II) and code version in your post. If your question is about PCB assembly or modifications, you must also include the main board version number (1.01, 2.2 or 3.0).
If you have questions about MS1/Extra or MS2/Extra code configuration or tuning, please post them at www.msextra.com Such questions posted here will be moved to: a temporary MSextra sub-forum, where they will be removed after 7 days
The full forum rules are here: Forum Rules, be sure to read them all regularly.
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boosted 89
- MegaSquirt Newbie
- Posts: 14
- Joined: Mon Aug 23, 2010 6:01 am
- Location: Ontario Canada
Re: Ruined wideband o2 sensor?
What wideband O2 are you using? Is it possible you may require a free air calibration to be performed like some of Innovate WB controllers. I would unplug the controller and O2 sensor...let the engine sit for a while to clear out the exhaust fumes and reinstall. just a thought!
chris
I don't think leaving an WB O2 sensor unplugged for 1/2 hour will kill the sensor. but then again.....
chris
I don't think leaving an WB O2 sensor unplugged for 1/2 hour will kill the sensor. but then again.....
Chris King
86 Omni GLHT on the squirt
89 Porsche 930 slantnose
86 Omni GLHT on the squirt
89 Porsche 930 slantnose
Re: Ruined wideband o2 sensor?
I'm using an Innovate LC-1.boosted 89 wrote:What wideband O2 are you using? Is it possible you may require a free air calibration to be performed like some of Innovate WB controllers. I would unplug the controller and O2 sensor...let the engine sit for a while to clear out the exhaust fumes and reinstall. just a thought!
chris
I don't think leaving an WB O2 sensor unplugged for 1/2 hour will kill the sensor. but then again.....
I calibrated it per the manual when I installed it and did an open air calibration today.
In open air it reads 22.something and in a gas soaked rag it reads 7.something. But response seams slow.
I've been looking around and found something about the heater having to be on while the engine is running to burn off carbon so it doesn't build up in the sensors "pump."
I went ahead and ordered another one from DIYAutoTune so it should be here by the end of the week. Oh well live and learn.
Re: Ruined wideband o2 sensor?
"dumb behind attack" haha.
Just noticed the board automatically edits some words, looks like my grandmother wrote that.
Just noticed the board automatically edits some words, looks like my grandmother wrote that.
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kjones6039
- Master Squirter
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Re: Ruined wideband o2 sensor?
Just one man's opinion mind you - but I wouldn't use a gas soaked rag! I think you risk contaminating the sensor.
I use a cigarette lighter (UN-LIT OF COURSE) to test my sensor which seems to work quite well.
Ken
I use a cigarette lighter (UN-LIT OF COURSE) to test my sensor which seems to work quite well.
Ken
1979 Corvette - 383 CID SBC w/ Holley Pro-Jection 900 CFM TBI, 4-85 lb lo-z injectors & Walbro 255 pump
MS2 v3 w/ms2extra 3.4.0 Release
36-1, Delphi LS2/7 coils in wasted spark, driven by v2.0 logic board from JBPerformance
Spartan Lambda Sensor from 14point7
MS2 v3 w/ms2extra 3.4.0 Release
36-1, Delphi LS2/7 coils in wasted spark, driven by v2.0 logic board from JBPerformance
Spartan Lambda Sensor from 14point7
Re: Ruined wideband o2 sensor?
How do you use a cig lighter to test? (just curious 
)
)
Re: Ruined wideband o2 sensor?
Good idea, thanks for the tip. Much cleaner and no lingering gas smell on your hands.kjones6039 wrote:Just one man's opinion mind you - but I wouldn't use a gas soaked rag! I think you risk contaminating the sensor.
I use a cigarette lighter (UN-LIT OF COURSE) to test my sensor which seems to work quite well.
Ken
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DonTZ125
- Experienced Squirter
- Posts: 337
- Joined: Sat May 16, 2009 1:49 pm
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Re: Ruined wideband o2 sensor?
Push the valve button on the lighter so it sprays butane vapour at the sensor, which then declares, "Holy cow - I'm surrounded by unburned hydrocarbon!" Zippo types and self-auto-lighting types don't work for this, of course...HidRo wrote:How do you use a cig lighter to test? (just curious
Re: Ruined wideband o2 sensor?
Nice method!!!!
Always learning!
Always learning!