Last night on the way home from a buddies house, I noticed the truck running a little rough. It was sputtering from idle up until about 1500rpm. Once it warmed up it started running better. It did the same thing on the way to work this morning and it threw the following codes.

P0132
P0135
P1131

Is anyone familiar with this series of codes? Obviously a bank 1 issue but I'm curious to what the actual culprit is.

 

What's throwing me off is that the O2 sensors aren't even a month old. I believe I purchased bosch sensors. Is there a possibility that one is already going bad?

 

I would start with checking o2 bank 1 sensor 1. Check connection and change if necessary.

 

I think I'm going to put the sensors in the opposite sides and see if the codes change to follow the sensor. If this is the case then a new sensor is definitely in order.

 

That's a good idea. Also like I mentioned check the connection.

 

P0133 just came up. Leading me to believe that it's the O2 at fault. Man is it running rough right now.

 

Hopefully you bought O2 extensions and didnt make them.. I bought the O2 extensions for a 99-04 Mustang and havent got the codes. I had similar issues buy extending the wiring.

 

Initially I cut and extended but since the o2's were original I replaced them and used O2 extenders. I'm going to go over everything with a fine tooth comb on Sunday. At the moment it's running smoothly but it seems like it's low on power. A couple of the codes went away though. I don't remember off the top of my head which ones in specific.

 

So I cleaned the MAF last night and reset the codes. P0133 and p1131 went away but now I'm getting p1132. Does this sound like a faulty sensor to you guy? I haven't had time to swap the sensors into opposite sides yet. I'm doing that after work to see if the code follows

 

Ok so I finally got around to swapping the O2 sensors from bank 1 to bank 2 and vise versa. I'm throwing the codes

P0135
P0136
P0141
P0156
P0161
P1132
P1151

Now obviously I don't have catalytic converters or rear O2 sensors. But it's throwing codes for all 4 heater circuits and then telling me it's running rich and lean at the same time? I'm confused. Any ideas?