P0154 code

[Big Laboque]

Hello,

About a month ago I got the 150 & 174 codes so I replaced that O2 sensor and erased the codes. Everything was fine for a couple of weeks. Last week the SES light came on and I got the same codes plus the P1174 one. I replaced the MAFS with a new Bosch one last night. I erased the codes today and about an hour later the SES light came back on with the P0154, P0174, P1174 codes. I know it's the same sensor, so... did I just have bad luck and replaced the sensor a month ago with another bad one or is it something else???

TIA, Lynwood

 

[lordkenyon]

Do a search for PXXXX on the forum here. Tons of information on those codes.

Oh and from the sticky on this forum

I believe that I will no longer respond to a requests for help if the poster does not put the model/year of truck either in the post or their profile.

ARGH!

"My truck is broken-help me", is not enough information.

If you have only one Rover, put the damned year and model in your profile!!!
__________________
Wrenchin' to Riches!

 

[Big Laboque]

Sorry about that, 2000 DII.

As for the code, I know P0154 is for the same sensor I just replaced. I did search prior to posting the question but I didn't find an instance of someone with a bad sensor and replace it with what turned out to be another bad sensor. What I am asking (poorly, I suppose) is is it likely the the brand new sensor is also bad or should I look in a different direction?

Thanks

 

[lordkenyon]

Ah, okay.

You can try switching the O2 sensor to the other side and see if it changes the code to the appropriate side. You'd then know if it's a bad sensor. Lets start with that and go from there. Otherwise, might be some leaking on the sensor causing an issue.