brett5

i have a catless dp and the rear o2 sensor was deleted in hptuners so i used that rear bung for my aem wideband and disconnected the rear o2 sensor and i hooked my power supply to the same 10fuse that is shown in the how to on here and now after driving around for a half hour both these codes were thrown? can anyone help me out?

well i hooked the rear o2 sensor back up hoping that the mere fact that it is just unplugged even while still being deleted is causing my cels.. its just hanging underneath the car right now... but i cleared the codes and they havent come back on yet i'll wait and see tho.. any added info would help thanks

Ok did that now it's throwing p0137 oxygen sensor low voltage

Coblasts

DTC P0140
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 temperatures 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.

If the PCM detects that the HO2S 2 voltage remains within the bias voltage range, DTC P0140 will set.


Looks like it is not deleted and the pcm is still lookink for the voltage fluctuations.

BLAZIN07SS

iTrader: (7)

there are like 5 or 6 codes that need to be set to "no error reported"

brett5

ahh ok i see well im just gonna put sensor back in a weld new bung for wideband..that should solve that problem thanks guys..and yea only one code was deleted...just the one i needed to go catless