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P2270 error. O2 sensor bank 1 sensor 2

L

lsv_palana

Well-Known Member
Messages
383
Location
Kamchatka, Russia
Hello friends. Today i have noticed p2270 error on my hummer h3 v8 5.3l. as i understand this is o2 error... i connect tech2 read sensor state - all ok.. delete all errors, but error reappear after 4 hours of driving... what i have to do ? thank you...

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