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p2271
6.0 O2 sensor...I need the rest of my hair
Chevy Silverado Forum (GMC Sierra)
Code PO138/2271 ...so far I've put in new air filter, cleaned MAP sensor, as well as, 2 new sensors; I figured the first one was bad as well. My scan tool states that it is stuck rich and High voltage. Please help
3
127
tfconlon
·
3 mo ago
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