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2008 Sierra p2271


ken_man_1
03-24-2010, 11:21 AM
2008 Sierra, 4.3L auto 2wd

2 weeks ago I get P0141 and P0036. Oxygen sensor had a corroded wire right at the sensor. Replaced the sensor with a Bosch universal - there were no oem's available.

Last week, I got a p0128. Thermostat bad. Replaced, no more codes.

Today, I have a p2271 code. Same oxygen sensor as 2 weeks ago. Maybe the universal one isn't a good suitable replacement. I ordered an oem sensor to squash this problem.

Has anyone else run into this type of problem?

2008 Escalade
08-22-2010, 10:00 AM
Go the experts on 02 problems - www.Walkerproducts.com (http://www.Walkerproducts.com)

They have fixed all of my o2 problems and have answered all of my questions.




2008 Sierra, 4.3L auto 2wd

2 weeks ago I get P0141 and P0036. Oxygen sensor had a corroded wire right at the sensor. Replaced the sensor with a Bosch universal - there were no oem's available.

Last week, I got a p0128. Thermostat bad. Replaced, no more codes.

Today, I have a p2271 code. Same oxygen sensor as 2 weeks ago. Maybe the universal one isn't a good suitable replacement. I ordered an oem sensor to squash this problem.

Has anyone else run into this type of problem?

ken_man_1
10-10-2012, 02:48 PM
Wow, I just realized that I never posted a fix for this problem. :banghead:

The p2271 was a bad "new sensor" twice from Autozone. I got a new Denso, and it went away.

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