turning of 02 sensor
Drifting
Joined: Oct 2002
Posts: 1,335
Likes: 76
From: Bedford Va.
contact LG and get a new adapter.
Check the heater fuse for the o2 sensors.
you should have rear/heated o2 sensors in the front position.
check for exhaust leaks near the sensor.
tie up the wires, a little heat shielding over the wires also helps.
If you o2's are the original ones replace them.
clear your codes.
when everything is back to normal if he code comes back you can then have the tuner turn off the slow response codes.
this has been a problem with LG headers, their o2 sensors are further away from the engine than most. Running no cats makes the heat up time even longer.
GM has the required time between switching very tight.
Note that if the codes are turned off a bad o2 will not set a code so you will not know until drivability issues show up.
I have LG headers and I have to run with the codes turned off.
Check the heater fuse for the o2 sensors.
you should have rear/heated o2 sensors in the front position.
check for exhaust leaks near the sensor.
tie up the wires, a little heat shielding over the wires also helps.
If you o2's are the original ones replace them.
clear your codes.
when everything is back to normal if he code comes back you can then have the tuner turn off the slow response codes.
this has been a problem with LG headers, their o2 sensors are further away from the engine than most. Running no cats makes the heat up time even longer.
GM has the required time between switching very tight.
Note that if the codes are turned off a bad o2 will not set a code so you will not know until drivability issues show up.
I have LG headers and I have to run with the codes turned off.
Thread Starter
Burning Brakes
Joined: Jan 2013
Posts: 1,091
Likes: 1
From: Hercules CA
contact LG and get a new adapter.
Check the heater fuse for the o2 sensors.
you should have rear/heated o2 sensors in the front position.
check for exhaust leaks near the sensor.
tie up the wires, a little heat shielding over the wires also helps.
If you o2's are the original ones replace them.
clear your codes.
when everything is back to normal if he code comes back you can then have the tuner turn off the slow response codes.
this has been a problem with LG headers, their o2 sensors are further away from the engine than most. Running no cats makes the heat up time even longer.
GM has the required time between switching very tight.
Note that if the codes are turned off a bad o2 will not set a code so you will not know until drivability issues show up.
I have LG headers and I have to run with the codes turned off.
Check the heater fuse for the o2 sensors.
you should have rear/heated o2 sensors in the front position.
check for exhaust leaks near the sensor.
tie up the wires, a little heat shielding over the wires also helps.
If you o2's are the original ones replace them.
clear your codes.
when everything is back to normal if he code comes back you can then have the tuner turn off the slow response codes.
this has been a problem with LG headers, their o2 sensors are further away from the engine than most. Running no cats makes the heat up time even longer.
GM has the required time between switching very tight.
Note that if the codes are turned off a bad o2 will not set a code so you will not know until drivability issues show up.
I have LG headers and I have to run with the codes turned off.
Drifting
Joined: Oct 2002
Posts: 1,335
Likes: 76
From: Bedford Va.
the p1133, p1153 should be the rear o2's, a tuner needs to delete them, they will never get hot enough not to set codes.
The front two p133, p153 still require the step by step process to confirm that everything is functioning correctly before you have them turned off-if needed.
The front two p133, p153 still require the step by step process to confirm that everything is functioning correctly before you have them turned off-if needed.
Thread Starter
Burning Brakes
Joined: Jan 2013
Posts: 1,091
Likes: 1
From: Hercules CA
the p1133, p1153 should be the rear o2's, a tuner needs to delete them, they will never get hot enough not to set codes. The front two p133, p153 still require the step by step process to confirm that everything is functioning correctly before you have them turned off-if needed.
Burning Brakes
Joined: Nov 2010
Posts: 1,173
Likes: 10
From: Charleston, SC
the p1133, p1153 should be the rear o2's, a tuner needs to delete them, they will never get hot enough not to set codes.
The front two p133, p153 still require the step by step process to confirm that everything is functioning correctly before you have them turned off-if needed.
The front two p133, p153 still require the step by step process to confirm that everything is functioning correctly before you have them turned off-if needed.
Just buy new name brand front 02 sensors. Id bet money that there is 0 difference in aftermarket front and rear sensors except for the harness. When I did LT's all i did is buy new bosch sensors for the front after i got p1133 and 53.
Last edited by AngryTurtle; Nov 22, 2013 at 02:47 PM.
Thread Starter
Burning Brakes
Joined: Jan 2013
Posts: 1,091
Likes: 1
From: Hercules CA
NO. Both of those codes are for the front.
Just buy new name brand front 02 sensors. Id bet money that there is 0 difference in aftermarket front and rear sensors except for the harness. When I did LT's all i did is buy new bosch sensors for the front after i got p1133 and 53.
Just buy new name brand front 02 sensors. Id bet money that there is 0 difference in aftermarket front and rear sensors except for the harness. When I did LT's all i did is buy new bosch sensors for the front after i got p1133 and 53.
Racer
Joined: May 2011
Posts: 258
Likes: 0
From: Acworth Georgia
P1133 or P1153
CIRCUIT DESCRIPTION
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. A transition is defined as, the HO2S voltage changes from above 600 mV to below 300 mV or from below 300 mV to above 600 mV1. If the PCM detects that the number of transitions were less than a specified value, DTC P1133 or P1153 sets.
CONDITIONS FOR RUNNING THE DTC
•DTCs P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0131, P0132, P0134, P0135, P0151, P0152, P0154, P0155, P0200, P0300, P0410, P0440, P0442, P0446, P0452, P0453, P1120, P1125, P1220, P1221, P1258, P1415, P1416, P1441, P1514, P1515, P1516, P1517, or P1518 are not set.
•The Loop Status parameter is Closed.
•The Engine Run Time parameter is more than 160 seconds.
•The Engine Speed parameter is between 1,000-2,300 RPM.
•The Ignition 1 Signal parameter is between 9-18 volts.
•The ECT sensor parameter is more than 50°C (122°F).
•The EVAP purge solenoid command parameter is more than 0 percent.
•The MAF sensor parameter is between 18-50 g/s.
•The TP indicated angle parameter is 5 percent more than the value observed at idle.
•The fuel level parameter is more than 10 percent.
•The above conditions are met for 60 seconds.
CONDITIONS FOR SETTING THE DTC
The affected HO2S lean to rich or rich to lean switches are less than a calibrated amount.
ACTION TAKEN WHEN THE DTC SETS
•The control module illuminates the malfunction indicator lamp (MIL) on the second consecutive ignition cycle that the diagnostic runs and fails.
•The control module records the operating conditions at the time the diagnostic fails. The first time the diagnostic fails, the control module stores this information in the Failure Records. If the diagnostic reports a failure on the second consecutive ignition cycle, the control module records the operating conditions at the time of the failure. The control module writes the operating conditions to the Freeze Frame and updates the Failure Records.
CIRCUIT DESCRIPTION
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. A transition is defined as, the HO2S voltage changes from above 600 mV to below 300 mV or from below 300 mV to above 600 mV1. If the PCM detects that the number of transitions were less than a specified value, DTC P1133 or P1153 sets.
CONDITIONS FOR RUNNING THE DTC
•DTCs P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0131, P0132, P0134, P0135, P0151, P0152, P0154, P0155, P0200, P0300, P0410, P0440, P0442, P0446, P0452, P0453, P1120, P1125, P1220, P1221, P1258, P1415, P1416, P1441, P1514, P1515, P1516, P1517, or P1518 are not set.
•The Loop Status parameter is Closed.
•The Engine Run Time parameter is more than 160 seconds.
•The Engine Speed parameter is between 1,000-2,300 RPM.
•The Ignition 1 Signal parameter is between 9-18 volts.
•The ECT sensor parameter is more than 50°C (122°F).
•The EVAP purge solenoid command parameter is more than 0 percent.
•The MAF sensor parameter is between 18-50 g/s.
•The TP indicated angle parameter is 5 percent more than the value observed at idle.
•The fuel level parameter is more than 10 percent.
•The above conditions are met for 60 seconds.
CONDITIONS FOR SETTING THE DTC
The affected HO2S lean to rich or rich to lean switches are less than a calibrated amount.
ACTION TAKEN WHEN THE DTC SETS
•The control module illuminates the malfunction indicator lamp (MIL) on the second consecutive ignition cycle that the diagnostic runs and fails.
•The control module records the operating conditions at the time the diagnostic fails. The first time the diagnostic fails, the control module stores this information in the Failure Records. If the diagnostic reports a failure on the second consecutive ignition cycle, the control module records the operating conditions at the time of the failure. The control module writes the operating conditions to the Freeze Frame and updates the Failure Records.
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