O2B1S1 stuck in 0.44 - 0.46 range
08-16-2010, 07:00 PM
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O2B1S1 stuck in 0.44 - 0.46 range Hey all. I just installed headers and a re-tuned PCM and logged some data on Autotap. It shows the O2B1S1 stuck in an unwavering range of 0.44 - 0.46v. This is at all TPAs, including WOT, and all rpms from 1000 - 5800.
I think a leak can cause a sensor to read low, but can't believe it would stay constant under a wide variety of conditions.
Any thoughts to the cause? Loose electrical connection (haven't checked yet), bad sensor?
Thanks
BobP
I think a leak can cause a sensor to read low, but can't believe it would stay constant under a wide variety of conditions.
Any thoughts to the cause? Loose electrical connection (haven't checked yet), bad sensor?
Thanks
BobP
08-16-2010, 07:24 PM
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That is how they read when they are disconnected - check the connector first... If it is connected (to the right connector - have seen some mistakenly connect to the rear connectors), then you have a bad pin or wire burnt or something...
08-17-2010, 05:19 PM
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. This was on the home stretch after solving the dipstick tube and cross-threaded header bolt capers. What's worse, I've lost the second extension 
. I love my hobby.
BobP
