P1133

[pl4yboy]

After attempting to get the Pacesetter LT's to fit (and failing), I put the stock exhaust back on and am now getting a P1133 code. I get a random miss and I'm guessing one of the o2 sensors went bad somehow. Any ideas from the peanut gallery?

[Frenchy]

It means your gay.

[6.0vortecchevy]

Why wouldnt they fit? They should slide right in place.

[pl4yboy]

It means your gay.

Thats not what your mother said last night... (best Sean Connery voice)

Why wouldnt they fit? They should slide right in place.

Pacesetters don't fit NNBS 4x4s. They hit the frame and driveshaft.

[6.0vortecchevy]

Oh dint know what year you had, that sucks tho. do you know of any other companies that make them for your truck.

[ducky]

That means you can't go below 50mph or your truck will blow..

[BSridenguy]

Not to hijack the thread, but I got the p1134 code? I know it's related to the O2 sensors? Does it mean ones bad, if so, which one? Thanks for any help

[tech946]

Heated oxygen sensors (HO2S) are used for fuel control and post catalyst monitoring. Each HO2S compares the oxygen content of the surrounding air with the oxygen content in the exhaust stream. The HO2S must reach operating temperature to provide an accurate voltage signal. Heating elements inside the HO2S minimize the time required for the sensors to reach operating temperature. The powertrain control module (PCM) supplies the HO2S with a reference, or bias, voltage of about 450 mV. When the engine is first started the PCM operates in open loop, ignoring the HO2S voltage signal. Once the HO2S reaches operating temperature and closed loop is achieved, the HO2S generates a voltage within a range of 0-1,000 mV that fluctuates above and below bias voltage. High HO2S voltage indicates a rich exhaust stream; low HO2S voltage indicates a lean exhaust stream. This diagnostic will only run once per ignition cycle. The PCM monitors the number of rich-to-lean and lean-to-rich transitions. If the PCM detects that the number of transitions were less than a specified value, DTC P1133 sets for HO2S bank 1 sensor 1,or DTC P1153 sets for HO2S bank 2 sensor 1.

the HO2S with a reference, or bias, voltage of about 450 mV. When the engine is first started the PCM operates in open loop, ignoring the HO2S voltage signal. Once the HO2S reaches operating temperature and closed loop is achieved, the HO2S generates a voltage within a range of 0-1,000 mV that fluctuates above and below bias voltage. High HO2S voltage indicates a rich exhaust stream; low HO2S voltage indicates a lean exhaust stream. This diagnostic will only run once per ignition cycle. The PCM monitors the rich-to-lean and lean-to-rich transition time. A transition is defined as, the HO2S voltage changes from above 625 mV to below 250 mV or from below 250 mV to above 625 mV. If the PCM detects that the difference between the rich-to-lean average transition time and lean-to-rich average transition time is more than a specified value, DTC P1134 sets for HO2S bank 1 sensor 1, or DTC P1154 sets for HO2S bank 2 sensor 1.

[BSridenguy]

So if i'm understanding this correctly, basically the truck is running too rich/lean for too long when its first started?

Another question too, i don't any post cat o2 sensors? Are the Ho2's in the O2 sensors?

[tech946]

that code is for bank 1 sensor 1 (pre cat 02 sensor) yes, h02 just means it has a heater built in