2002 chevy blazer, sensor problems

janie53
Posts: 5
Joined: Thu Mar 21, 2013 6:31 pm

Re: 2002 chevy blazer, sensor problems

Unread post by janie53 » Sun Mar 24, 2013 7:34 pm

I'll checked the wiring going to the sensor, thanks for all your help.

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carriedi
Posts: 2573
Joined: Wed Apr 10, 2013 12:42 pm

Re: 2002 chevy blazer, sensor problems

Unread post by carriedi » Fri Oct 16, 2015 12:31 am

did you clear the codes after replacing the sensors? If you cleared the codes with a scanner and the same p0155 came back you should check the fuse for the o2 sensor heaters.
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