Buch of codes from O2 Sensors
Hi,
I have Galant 2004 ES/LS High. I thought that it was ES 4 door, but carfax is saying like that by VIN. I have the check engine light on, and read the code, and showed several codes related to the o2 sensors. I had the following code, P0155 : 02S Heater CKT Malfunction 2/1 (bank 2 sensor 1 ?) So, I changed the O2S to take care of it, but now it is creating more problem. First, I am not sure if I changed the right one. As you may be aware, when I open up the hood I see two sensors right away on the top, and two ones in the bottom. I changed one top one on the right side when you see it from outside, but had bunch of codes. I am assuming this is bank 2 sensor 1, and one in the below will be bank 2 sensor 2. Anyway, after replacing it, however, I even had some codes related one on bank 2 sensor 2 too, so I thought I replaced wrong one. To check it out, I unplugged the one which I think bank 2 sensor 2, (I mean only the cable), and read the code again after unplugging battery for a while and re-connecting it to reset the code, and driving until I have the check engine light on. Now, the code is like that, 1. P0154 - O2S Ckt No Activity Detected 2/1 2. P0151 - O2S Ckt Low Volts 2/1 3. P0155 - O2S Heater Ckt Malfunction 2/1 4. P0156 - O2S Ckt Malfunction 2/2 5. P0161 - O2S Heater Ckt malfunction 2/2 Now, I am confused more, even I am not sure if I replaced right one. So, which one is the bank 2 sensor 1. Is it really the top right one I see right away when I open up the hood ? or the one in the bottom in the right side. The code P0154 seems to be from the fact that I unplugged the sensor cable, then Bank 2 sensor 1 is one in the bottom not on the top ? Give me some advice .... Please !!! |
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