Codes P0133, P1134, P1133 and P0171 and location of O2 oxygen sensors

Tiny
IGENIUS92
  • MEMBER
  • 2006 CHEVROLET TRAILBLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 174,000 MILES
Hello, I'm trying to get smogged and need to know the exact drive cycle to get the vehicle ready for smog. Also it has a few codes. I would like to know how to trouble shoot and fix. Here's some pictures of the codes some are duplicated. But in case the pictures won't send here's are the codes that popped up on the vehicle: p0133 p1134 p1133 and p0171. Someone please help. Thank you
Wednesday, December 11th, 2019 AT 8:48 AM

11 Replies

Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

Okay, in the diagrams down below I have included the full factory diagnostic troubleshooting flowcharts for each of the Direct Trouble Codes [DTC][s] listed in your question. Please go through these guides and get back to us with how everything turns out. I hope that this helps.

Thanks,
Alex
2CarPros
Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Was this
answer
helpful?
Yes
No
-1
Monday, June 28th, 2021 AT 8:01 PM
Tiny
IGENIUS92
  • MEMBER
  • 205 POSTS
Thanks, so I pulled the o2's off and cleaned them well especially bank one sensor one, that code went off and trying to get the vehicle ready for smog I have almost all the ready test lights green except the "Evap" on the "IM READYNESS" on my code scanner and I still have a p0171 system too lean code any ideas on how to fix that code so it will be ready for smog?
Was this
answer
helpful?
Yes
No
Monday, June 28th, 2021 AT 8:01 PM
Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

This could be a problem with a vacuum leak in the EVAP system. An intake/vacuum leak is defined as any air entering the air intake system after the Mass Air Flow sensor[MAF] up to the engine's combustion chamber. This includes the air intake tract, throttle body, intake manifold, vacuum and EVAP lines. In the diagrams down below I have included the EVAP and emission hose routing diagrams for your vehicle for you. Please inspect the EVAP lines for any loose, cracked, dry rotted, or damaged lines and components and get back to us with what you are able to find out. Also, here is a link to a generic guide explaining how to find vacuum leaks which might be helpful as well:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Thanks,
Alex
2CarPros
Images (Click to make bigger)
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Monday, June 28th, 2021 AT 8:01 PM
Tiny
IGENIUS92
  • MEMBER
  • 205 POSTS
Thank you I'll try and find any leaks and let you know. If found and replace the hose should I clear the code?
Was this
answer
helpful?
Yes
No
Monday, June 28th, 2021 AT 8:01 PM
Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello again,

Yes you should. Here is a guide on how to do this with a code reader below, if needed:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

If you don't have access to a code reader you can also accomplish this by disconnecting the negative battery cable for 5 minutes and the reinstalling it. This method though erases all of the Keep Alive Memory[KAM], so a Power-train Control Module[PCM] or "computer" relearn of certain parameters will have to take place. This should happen automatically, but might cause driveability concerns while it is doing this. Please get back to us with how everything turns out.

Thanks,
Alex
2CarPros
Was this
answer
helpful?
Yes
No
Monday, June 28th, 2021 AT 8:01 PM
Tiny
IGENIUS92
  • MEMBER
  • 205 POSTS
I few lights came on the dash to say can you tell me what they mean? I'm sending a pic now.
Image (Click to make bigger)
Thumb
Was this
answer
helpful?
Yes
No
Monday, June 28th, 2021 AT 8:01 PM
Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello again,

The one we need to concern ourselves with right now is the one that looks like a vehicle engine. This lamp is called the Malfunction Indicator Lamp[MIL] or "check engine" lamp and it illuminated when there is a Direct Trouble Code[DTC]. This is part of the On Board Diagnostic II[OBD2] monitoring system that all modern vehicles[1996-present] have on them. This system alerts the driver to any problems that the vehicle might have. You will have to retrieve the DTC[s] from your vehicle's Data Link Connector[DLC]. Here is how you do that:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please get back to us with the DTC[s] and we can go from there.

Thanks,
Alex
2CarPros
Was this
answer
helpful?
Yes
No
+1
Monday, June 28th, 2021 AT 8:01 PM
Tiny
IGENIUS92
  • MEMBER
  • 205 POSTS
Yes the check engine light has been on. I fixed the O2 sensors and ran the vehicle cycle to get it ready for smog. But a new light came on today. It's indicating some type of traction control light. Is there anyway I can fix this or get it to cut off so I can get the vehicle ready for smog? Please help!
Was this
answer
helpful?
Yes
No
Monday, June 28th, 2021 AT 8:01 PM
Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello again,

Yes there is. I need the DTC number please.

Thanks,
Alex
2CarPros
Was this
answer
helpful?
Yes
No
Monday, June 28th, 2021 AT 8:01 PM
Tiny
IGENIUS92
  • MEMBER
  • 205 POSTS
Hello and thank you for the great info! So I made a home made smoke machine, actually works great! Anyhow so I ran the tube through the brake booster line and found a evap leak in the far back of the intake but I guess what is called the "evap canister" is in the way is there an easier way to get that off? I'm not sure what its called but I'm sending a picture with the white arrow pointing to what I need to get off can you help so I can better pin point the evap leak? It doesn't look easy to get off, the "evap canister" I mean. Thank you!
Images (Click to make bigger)
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Monday, June 28th, 2021 AT 8:01 PM
Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello again,

In the diagrams down below I have included the vacuum hose routing diagrams for your vehicle. From what I can gather it looks like it could be the pre-plenum resonator. Please get back to us with what you find out.

Thanks,
Alex
2CarPros
Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Monday, June 28th, 2021 AT 8:01 PM

Please login or register to post a reply.

Related Oxygen Sensor Location Content

VIEW MORE