Code 1153 With Long Tubes

[hllywd]

Im not sure if this is the right place for this but Ill start here anyways.
I installed LT headers last year W/O cats. I put the factory O2 sensors back in and after about 50 miles code 1153 poped up (insufficient switching). Cleared it with my predator.
This year I replaced the sensors with new Bosch ones same thing happens after about 50 miles, code 1153 again.
Ive heard that this is common when LT headers are installed W/O cats.
Is there anything that can be done short of deleting the sensors?
Anyone else take care of this problem?
What would be the fallout if I delete the sensors in the PCM?

Thanks in advance

[Mr. Luos]

This is what I got....

Sounds like it might be something else. Possible injector maybe??

DTC P1133 or P1153

Circuit Description
The powertrain control module (PCM) monitors the heated oxygen sensor (HO2S) activity for 100 seconds. During this period, the PCM counts the number of times that the HO2S switches form rich to lean, and from lean to rich. A DTC P1133 or a DTC P1153 sets when the PCM determines that the HO2S did not switch enough times.

A lean-to-rich switch is determined when the HO2S voltage changes from less than 300 mV to more than 600 mV. A rich-to-lean switch is determined when the HO2S voltage changes from more than 600 mV to less than 300 mV. This diagnostic runs once per ignition cycle.

Conditions for Running the DTC
- DTCs P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0117, P0118, P121, P0122, P0123, P0200, P0300, P0410, P0440, P0442, P0446, P0452, P0453, P1258, P1415, P1416, or P1441 are not set.
- The loop status is Closed.
- The engine run time is more than 160 seconds.
- The engine speed is between 1,000-2,300 RPM.
- The ignition 1 signal is between 9-18 volts.
- The engine coolant temperature (ECT) is more than 500C (1220F).
- The evaporative emissions (EVAP) purge solenoid is more than 0 percent.
- The mass air flow (MAF) is between 20-50 g/s.
- The throttle position (TP) is more than 5 percent.
- The fuel tank level remaining is more than 10 percent.

Conditions for Setting the DTC

The HO2S lean to rich and 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.

Conditions for Clearing the MIL/DTC
- The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
- A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
- A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
- Clear the MIL and the DTC with a scan tool.

Oh....and by the way, I wouldn't delete the front O2 sensors from the computer. Not even sure you can.