Chevy HHR Network - Codes P0131, P0171, P0300 & P1133

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- - Codes P0131, P0171, P0300 & P1133 (https://www.chevyhhr.net/forums/problems-service-repairs-42/codes-p0131-p0171-p0300-p1133-61529/)

rbunton

03-18-2019 06:03 PM

Codes P0131, P0171, P0300 & P1133

for the techs out there, can all these be caused by a bad oxygen sensor?

donbrew

03-18-2019 06:26 PM

Or a blown EXH fuse #33 under hood.

rbunton

03-19-2019 05:03 AM

Nope, not it. Fuse looks fine. 😔

Oldblue

03-19-2019 09:47 AM

But did they test fine? Check them with a multi meter

rbunton

03-19-2019 01:16 PM

I'll try an different fuse after work.

donbrew

03-19-2019 02:38 PM

Could be the wire/connectors to #1 sensor or the sensor.

rbunton

03-19-2019 07:40 PM

I am going to start with replacing the upstream sensor. Think it’s worth it to buy/rent the socket or just cut the wires & use a standard socket to remove it?

Oldblue

03-19-2019 08:08 PM

The socket won’t squeeze into the space , use a 7/8 wrench

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