ECM Reflash.... Who has Done It?? After O2 Sensor Replacement?
Some of you may remember my other post attempting to solve a P2000 code. Well I lived with the code for months, because I honestly got tired of dealing with it. Well this month I had no choice but to deal with it because my 2006 Xterra was due for inspection. The truck will not pass unless the computer is is "ready" status with no codes.
I dropped it at my mechanic, and he attempt to fix it. He replaced the front oxygen sensor, with a new Nissan sensor. He was able to drive the truck and get the computer into ready status and inspect it.
But................he noted that the voltage value to the O2 sensor is slightly off, and the light may come back on. He did some research and noted that the ECM may need to be reflashed at the dealer. He said that Nissan actually recommends a reflash any time an O2 sensor is replaced. He stated that the reflash will allow the computer to be less sensitive to O2 voltage values.
Does the info my mechanic gave me make sense?