CEL bombardment

[Mudeprived]

Hi it has been a while since I been here. I wanted to ask you guya for some help on an issue that popped up while my mother was borrowing the truck. I got it back from her and the CEL light popped on. I got four codes from it:

p0125
p1130
p1135
p1135p

I plan on replacing both up and downstream 02 sensors on the cat with denso
234-4153 and 234-4162 sensors if those are the correct ones. That is what I have read could be the issue and the truck has 158k miles on it so they are due. Is there anything else I should look into?

Thanks

Chris
99 Limited v-6 4x4

 

[jgue467]

Could be a/f & 02 sensors.

FSM says to check pcv valve and hose first.

Then check sensor connectivity to ecu.

Then check a/f voltage to specs.

Luck. :cowboy:

 

[Mudeprived]

Could be a/f & 02 sensors.

FSM says to check pcv valve and hose first.

Then check sensor connectivity to ecu.

Then check a/f voltage to specs.

Luck. :cowboy:

Will do. Thanks.

It is running fine though.

 

[Vansnxtweek]

I have the same EXACT codes right now. I went through and checked all vacuum lines (and found a few cracked). I found that both a/f sensors (I have a cali version) were dead and I'm replacing those. I cleaned my MAF. Hoping these things will eliminate the codes.

 

[Mudeprived]

I have the same EXACT codes right now. I went through and checked all vacuum lines (and found a few cracked). I found that both a/f sensors (I have a cali version) were dead and I'm replacing those. I cleaned my MAF. Hoping these things will eliminate the codes.

Did you replace the cracked hoses? If so what did you use to replace em with? I have not had any luck with the rubber hoses at the parts stores. They seem to dry out and crack quickly.

 

[Vansnxtweek]

Did you replace the cracked hoses? If so what did you use to replace em with? I have not had any luck with the rubber hoses at the parts stores. They seem to dry out and crack quickly.

I guess I'll see how these last. I used vacuum line from Napa that seemed to be nice. If that doesn't work out I'll try to go ahead and get the OEM replacements. I do feel OEM is always the way to go, I just wanted to try this first.