Pulled CEL codes today...help me please

[AWDGreenMachine]

I pulled these codes today...

P0136 - o2 sensor circuit malfunction
P0141 - o2 sensor heater circuit
P0325 knock sensor 1 circuit
P0505 Idle control system malfunction

Does this mean that I need a new o2 sensor, knock sensor and IAC? Please interpret for me.

Thanks!

 

[TurboDSM86]

I pulled these codes today...

P0136 - o2 sensor circuit malfunction
P0141 - o2 sensor heater circuit
P0325 knock sensor 1 circuit
P0505 Idle control system malfunction

Does this mean that I need a new o2 sensor, knock sensor and IAC? Please interpret for me.

Thanks!

P0136 means O2 sensor circuit malfunction bank 1 sensor 2 (that's the last sensor, rear), check harness and connectors

P0141 means O2 sensor heater circuit malfunction bank 1 sensor 2, check harness and connectors

P0325 means either phantom knock or a dead knock sensor

P0505 could be related to the 02 sensor problems. Fix those and then clear codes and see if that code goes away..


BTW try searching, it only takes a minute and you can find PAGES of info on all these codes.


Eric

 

[AWDGreenMachine]

Thanks for the reply! I did indeed search and found the cel codes list. I just needed a little clarity on the matter. For instance...Does the o2 need to be replaced or does the knock sensor need to be replaced? or How do I fix the problem? I have a 3" tbe system with no bung for the rear o2, so I tie-wrapped it to an exhaust hanger with the understanding that it shouldn't give me any problem. Now, my question about the o2 is...If I install an o2 sim., should the o2 problem be solved? Thanks again!

 

[dave99gst]

the rear o2 mod is a good place to start- clear the cels and try again.
that may clear all you problems.

 

[AWDGreenMachine]

OK, Great! I just ordered the o2 Sim., so, I should have it by Wednesday hopefully. I'll post and give an update on the outcome once it's installed.