2001 LS1 Long tube Headers O2 Errors
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Teching In
Joined: May 2013
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2001 LS1 Long tube Headers O2 Errors Just bought a 2001 Ls1 with long tube headers and it has a service engine light. I had it checked at autozone and it threw 11 errors saying all the o2 sensors were bad. Ive read some problems with long tube headers and i dont have a lot of knowledge with mechanics.
* P1153 Heated Oxygen Sensor - Bank 2 Sensor 1
insufficient switching
ECM has detected switch ratio of rich to lean and lean to rich was belo a determined number
Probable Cause;
-Failed HO2S21 heater circuit
-HO2S21 signal shorted ECM ground
-Improper oxygen supply to sensor
* P0141 Bank 1 Sensor 2
heater condition
the computer has recognized a failure in this circuit
Probable cause;
-Faulty HO2S12
-Poor connection at oxygen sensor
-Circuit fuse
* PO155 Bank 2 Sensor 1
heater condition
the computer has recognized a failure in this circuit
Probable cause;
-Oxygen sensor defective
-Poor connection at oxygen sensor
-Circuit fuse
* PO161 Bank 2 Sensor 2
heater condition
the computer has recognized a failure in this circuit
Probable cause;
-Oxygen sensor defective
-Poor connection at oxygen sensor
-Circuit fuse
** P1133 Heated Oxygen Sensor - Bank 1 Sensor 1
insufficient switching
ECM has detected switch ratio of rich to lean and lean to rich was belo a determined number
Probable Cause;
-Failed HO2S11 heater circuit
-HO2S-11 signal shorted ECM ground
-Improper oxygen supply to sensor
I need to get this car legal whats my best route?
* P1153 Heated Oxygen Sensor - Bank 2 Sensor 1
insufficient switching
ECM has detected switch ratio of rich to lean and lean to rich was belo a determined number
Probable Cause;
-Failed HO2S21 heater circuit
-HO2S21 signal shorted ECM ground
-Improper oxygen supply to sensor
* P0141 Bank 1 Sensor 2
heater condition
the computer has recognized a failure in this circuit
Probable cause;
-Faulty HO2S12
-Poor connection at oxygen sensor
-Circuit fuse
* PO155 Bank 2 Sensor 1
heater condition
the computer has recognized a failure in this circuit
Probable cause;
-Oxygen sensor defective
-Poor connection at oxygen sensor
-Circuit fuse
* PO161 Bank 2 Sensor 2
heater condition
the computer has recognized a failure in this circuit
Probable cause;
-Oxygen sensor defective
-Poor connection at oxygen sensor
-Circuit fuse
** P1133 Heated Oxygen Sensor - Bank 1 Sensor 1
insufficient switching
ECM has detected switch ratio of rich to lean and lean to rich was belo a determined number
Probable Cause;
-Failed HO2S11 heater circuit
-HO2S-11 signal shorted ECM ground
-Improper oxygen supply to sensor
I need to get this car legal whats my best route?
My car would throw those exact codes all the time before I had a mail order tune done after my headers. I would try that first. Also, do you still have rear O2 sensors? Most of the time with longtubes those sensors get deleted which also will cause a service engine light until you get a tune.
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