LS1LT1 Forum : LT1, LS1, Camaro, Firebird, Trans Am, Engine Tech Forums - View Single Post - mysterious oxyen sensor
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post #14 of (permalink) Old 06-13-2019, 03:42 PM Thread Starter
Danomax6.6
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Join Date: Oct 2017
Location: Grand Rapids MI / North Chicago
Posts: 33
 
The soup is cold! after replacing the elbow the short term trims are better but still not right! it seems like the bank 1 sensor is reading better but still lean ranging form .2-.5ish. how long does it take for the long trims to follow? I drove it for about 20 minutes 2 times and they wont move past 25.

for kicks I unhooked the manifold valve on that side while running and there was some air movement through it. I also replaced the vaccum line under the elbow with no change. I suspect I have to break back out the magnifying glass again. LOL I attached some pic of my scan tool after I drove it for 20 mins. Please lmk if you see anything I may have missed. again thank you for your help!
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