P0154 P0134 for Kia Sorento

Which O2 sensors came out of the vehicle an which did you put back in ? Two different types for that vehicle.

DTC P0134 or P0154 (w/LR4 and LM7 w/ Delphi HO2S)
DTC P0134 or P0154 (w/LR4 and LM7 w/ Denso HO2S)
DTC P0134 or P0154 (w/LQ4 w/Denso HO2S)

If the check engine light came on I assume it was the check engine light, then you may feel no symptom for the code but never the less you have a failed part of other electrical issue, so if the manifold needs to be replaced to correct the check engine light and its fault code then that is what needs to be done. Remember if the CEL is on you will fail any emission inspection that is required.

It's a fault code connected with the intake manifold.


However, before you rush off and change it, have a look on the Internet. It seems that Kia had problems with this particular error code/or the software. Read about it first. Here's some links:

Check Engine Light P200A code intake manifold to be replaced Kia Forum

Check engine light code p200a 2011 Kia Sorento

Check Engine Light P200A code on new 2011 SX Kia Forte Forum Sedan Koup...

P0171 System too Lean (Bank 1)
P0174 System too Lean (Bank 2)
P0154 02 Sensor Circuit No Activity Detected (Bank 2 Sensor 1)
P0134 02 Sensor Circuit No Activity Detected (Bank I Sensor 1)

Code 134 is for no activity or signal coming from the O2 sensor for bank one sensor one.
Code 154 is for no activity or signal from bank 2 sensor one. My first guess would be a wiring problem since it is rare for two sensors to fail at the same time.

I'm going to assume this is for the Blazer.
Code 134 means the front O2 sensor for bank one is not sending any data or is not working correctly.
Code 154 is the same thing for the front sensor on bank two.
The sensors and wiring harness would need to be checked out. Once the problem is fixed and the codes erased, the warning light should stay off.

This combination of codes indicates a wiring issue. Trace the wires from the sensors to find a broken wire.

Dear Allamid,

Seems to me like you need angine diagnostics performed. Your idle speed is way to high here. Mapping the engine should pinpoint and solve the problem. This is typic\lly done by nothing more than plugging a laptop into the onboard computer that governs the engine.

By the sounds of the OBD code that you have, you already knew thisabove procedure.Even so, have the Engine management unit checked, and get someone to check thermostat,engine timing,and might be worth having a full service done.

If you still dont get anywhere with this,get in touch with me andI will investigate the matter thoroughly for you,but in the meantime I do hope that this actually does resolve your issue.

yours sincerely

Ouszen

The code is not complete it should be P0571
P0571 KIA - Brake Switch A Circuit
Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Stop light inoperative
- Cruise control system inoperative Possible causes - Misadjusted brake switch
- Brake switch open or short circuit
- Poor brake switch electrical connection
- Failed brake switch

p0454 erratic evap pressure sensor signal
p0122 throttle position sensor circuit low
p0113 intake air temp signal low
p0305 cyl #5 missfire
i would look for a short or open wire somewere
i checked TSBs from kia and none pertain to you
clear codes and drive then check to see if they come back. then repost