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Old 09-09-2016, 09:42 AM   #13 (permalink)
Z_ealot
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Default When to replace o2 sensors

Quote:
Originally Posted by Jsolo View Post
Failing o2 sensors may not necessarily trip a DTC. They start failing by not responding quick enough. You can only see this on a scan tool, preferably one capable of graphing the results. If o2 output looks more square wave than saw tooth, there is a problem.


Would this cause a hesitation in acceleration? My scantool doesnt have the ability to pick up on the pre cat o2 sensors, but from what i can gather from the stft and ltft it seems like the sensors are functioning, like you said though they could just not be responding quick enough which is what i suspect might be happening


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Last edited by Z_ealot; 09-09-2016 at 09:46 AM.
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