3rd gen P0155 o2 code
- Thread starter jhill15
- Start date
Bank 1 refers to the bank of cylinders which begin with cylinder 1, the right side of the vehicle. Bank 2 refers to the bank of cylinders which begin with cylinder 2, the left side of the vehicle. Left and right sides are determined when sitting in the driver's seat, facing the front of the vehicle.
Sensor 1 is upstream (pre-cat), sensor 2 is downstream (post-cat).
I'm assuming "bank2 cylinder1 o2 sensor" means "Bank 2, Sensor 1" which in your case, then, would mean the left side pre-cat sensor is triggering the code.
Sensor 1 is upstream (pre-cat), sensor 2 is downstream (post-cat).
I'm assuming "bank2 cylinder1 o2 sensor" means "Bank 2, Sensor 1" which in your case, then, would mean the left side pre-cat sensor is triggering the code.
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jhill15
Explorer
Sweet thanks man!
nnamssorxela
Adventurer
I'll chime in and say that since you are going to be under the car working on O2 sensors, I'd replace at least both of the front O2 sensors, and all 4 if you can manage the extra $60 or so. I think rockauto had all 4 Denso (OEM) sensors for ~$140, which I would guess is cheaper than just one from the dealer.
jhill15
Explorer
I could probably spend the extra cash for both upstream, But I will have to wait on the 2 downstream until next payday...bills lol.
Thanks man!
jhill15
Explorer
I ended up only ordering the left upfront. But thanks man for suggesting rockauto. Saved me $50 compared to autozone. It should be here friday.
MascotRejct
Adventurer
Rockauto is awesome. I ordered most of my parts for my timing belt/head gasket/valve stem seals job from there. Much cheaper than any of the stores around here.
jhill15
Explorer
Thats first time i've ordered from them. But i'm definitely gonna a return customer. They've already shipped it, and I just ordered this morning. Thats good service!
jhill15
Explorer
Nice I will have to see if I can find one. I gotta nab up a ac condenser fan soon and that would help.Don't forget to use the 5% off coupon code that you can always find online
Thanks man!
Since we're already discussing error codes and O2 sensors, I'll add my question here for posterity instead of starting a new thread.
After a day of slinging red clay mud, I started getting 3 error codes that relate to O2 sensors.
P0431: Warm Up Catalyst Efficiency Below Threshold (Bank 2)
P0134: O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
P0171: System too Lean (Bank 1)
I am also getting P0507, which I think is unrelated.
I'm going to crawl under the truck and make sure I don't have any broken wires, but if it turns out the wires and connections are in good order, is replacing the sensors my next step? If so, should I replace all 4 at the same time?
After a day of slinging red clay mud, I started getting 3 error codes that relate to O2 sensors.
P0431: Warm Up Catalyst Efficiency Below Threshold (Bank 2)
P0134: O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
P0171: System too Lean (Bank 1)
I am also getting P0507, which I think is unrelated.
I'm going to crawl under the truck and make sure I don't have any broken wires, but if it turns out the wires and connections are in good order, is replacing the sensors my next step? If so, should I replace all 4 at the same time?
I wish mine would. I cleared the codes in vain hope. They're back.
jhill15
Explorer
Idk why mine would just turn itself off. Unless it was a short with the o2 sensor and started working again. Of course this happened after I ordered the part...but I guess it will be good to have if the ses light comes back on.