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02-13-2008, 12:12 PM #1Newbie
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Misfire
hello, I'm getting code p0135b that is causing my engine to missfire and then throws a missfire code. I've checked a ton of things, but don't know how to get rid of this!!!
I've got a Chevy Suburban 03 AWD 5.3L
Please help.
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02-13-2008, 01:21 PM #2Moderator
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P0135b is the code for the O2 sensor, bank 1 sensor 1. Probably need to replace this O2 sensor. It is the one on the drivers side exhaust closest to the engine.
Gary
99 K 1500 Suburban
78 Silverado Big 10 w/factory 454
1977 Formula
1976 Trans Am
1980 Honda CB900 Custom
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02-13-2008, 02:26 PM #3Newbie
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I already changed the O2 sensors. Let me know if you think of something else, thank you!
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02-13-2008, 02:59 PM #4Master Mechanic
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not to be a pain, but new does not always mean good. i had many new parts that were junk. did you test the old one? you might have a wire or connector issue as well......mike
Michael Collins
1993 4X4 Suburban
many other toys as well
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02-13-2008, 03:23 PM #5Moderator
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the same thing happened to my wifes 2001 suburban and after much troubleshooting it turned out to be a bad coil pack
Darcy
Washington State
2006 Silverado 2500HD LT3 4X4 CC SB Duramax LBZ
Tuff Country 6" lift, 35" Toyo M/T's on 20" Ultra Peacemaker wheels, Quadzilla Stealth2 programmer, Diamond Eye 5" cat-back exhaust, factory Special order color Yellow.
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