I recently took my car to an electrician because I was having problems with my car. It showed codes P0135 and P0141 so both O2 sensors were replaced. About a week later I took it to a shop and they hooked up the scanner and it showed two codes this time P0136 and P0141. So I took it back to the other guy so he would fix it.
Later he called me and told me that apparently some lines were not getting the correct voltage. The next day he called me and told me he didnt know why it was showing those two codes. He said all the lines were now OK, all were getting the correct voltage and judging by the smell of the exhaust, the mixture was good. Because apparently he got another code that said the mixture was rich.
I dont know much about car electronics, but this is what he told me could be causing it. he said he checked the computer and apparently it shows it's getting no reading from some O2 sensors. Apparently the computer should be getting readings from 4 sensors and the car only has 2. So he tells me that Sensor 2 in Bank 1 does not exist phisically on the car and that is why it shows the 2 codes.(it doesnt get a reading from that sensor because it is not in the car) He says only sensor 1 bank 1 and sensor 2 bank 2 exist, but no bank 1 sensor 2 or bank2 sensor 1. I dont know if this make sense.
My questions are, how many sensors do our cars have? Why would he say the computer registers 4 sensors when there are only 2 can it be that the computer was changed and one from a car with 4 sensors was put in my car by the previous owner? Is changing the computers that way even possible? What can I do to verify if my car has the correct computer?
I've seen other fellows who have gotten the P0141 code so I believe that sensor does exist in our cars. Cause this guy is telling me that sensor does not exist at least in my car. He says there is only one before the cat and one after it.
Any help would be greatly appreciated.
Later he called me and told me that apparently some lines were not getting the correct voltage. The next day he called me and told me he didnt know why it was showing those two codes. He said all the lines were now OK, all were getting the correct voltage and judging by the smell of the exhaust, the mixture was good. Because apparently he got another code that said the mixture was rich.
I dont know much about car electronics, but this is what he told me could be causing it. he said he checked the computer and apparently it shows it's getting no reading from some O2 sensors. Apparently the computer should be getting readings from 4 sensors and the car only has 2. So he tells me that Sensor 2 in Bank 1 does not exist phisically on the car and that is why it shows the 2 codes.(it doesnt get a reading from that sensor because it is not in the car) He says only sensor 1 bank 1 and sensor 2 bank 2 exist, but no bank 1 sensor 2 or bank2 sensor 1. I dont know if this make sense.
My questions are, how many sensors do our cars have? Why would he say the computer registers 4 sensors when there are only 2 can it be that the computer was changed and one from a car with 4 sensors was put in my car by the previous owner? Is changing the computers that way even possible? What can I do to verify if my car has the correct computer?
I've seen other fellows who have gotten the P0141 code so I believe that sensor does exist in our cars. Cause this guy is telling me that sensor does not exist at least in my car. He says there is only one before the cat and one after it.
Any help would be greatly appreciated.
