car throwing codes P0105 and p0110

[giovanniv]

Alright after searching around for a while I have not found anything to solve my problem. Basically I got these codes after I chopped the wires of my rear o2 sensor since I am not using it. (wideband o2 sensor) Well now I am throwing these codes and my car sputters/ runs like shit at lower rpms. I just recently got a wideband installed and it is pegged all the way lean until I rev it up or the rpms get higher then it starts to get richer. I checked the ground trace on the ecu and it is perfectly fine. What else could be bad? I know the coolant temp sensor is working since when I log I can see coolant temps. Please help. Thanks

Oh and I forgot to include that there is a terrible misfire. I erased the codes with my scanner and it still didn't help.

 

[1995gsx20g]

those are both codes related to your MAS
p0105- barometric pressure sensor circuit malfunction
p0110- intake air temp circuit malfunction

check your MAS and related wiring

 

[Codester]

Yea the MAS connector and wires can become very brittle from the heat. A couple of my wires cracked because of the heat and angle they had to bend because of the fuse box.

 

[giovanniv]

Alright but when I unplug my MAS there is an idle change and the car wants to shut off. Can the MAS still be bad? And now my car threw a new code today. It is P0141 O2 sensor circuit malfunction. The car now when warmed up has really bad idle surge from like 1000-1750rpms. The only thing that I can think of that I haven't done is adjusted the biss screw with the connector grounded.

Another weird thing that the car does is that when I start it up the wideband reads at 14.7 at idle but then after like 4-5 seconds it just pegs itself all the way lean but my logger is still reading that I am at 14.7 at idle. I also hooked up my scan tool and it is reading the same. The MAS Signal is also right around the .60-.75 region at idle.