Problems with relief nissan pathfiner v6 year 2004

Estimated I need your help:
In June of last year I bought a Nissan Pathfinder v6 3.5 year 2004, which until November walked impeke, however, then it began to fail, it has problems with the release, when I stop at the Semaforos it turns off, sometimes when I leave it in neutral it is turned off and disconnected the brake and the steering wheel (I must go back to the brake.
He took it where an electromechanical and told me that it was the TPS sensor, I bought it and we changed them and nothing happened, they vaccinated me with several Lucas since they sell you the complete camera in the Nissan.
I went to another specialist and informs me that the truck is impeccable electronically and that the problem are fault codes that have to erase, for this you have to reprogram the ECU acquiring software. What do you think?
Thanks in advance.

Hello, based on what arguments the mechanic has told you that they are codes of the ECU?
During the operation of your Nissan, the light of the "Check Engine" is activated on the board?
Remember that a bad re-programming of the ECU can damage it.

Greetings from Ecuador.

Hello, how are you read your problem to help you have to do if you really have codes and if you can put them here and from there we can help

We review with the Scaner and the Octiloscope the vehicle, the TPS is not damaged, neither does the Relay Valve, the mechanic tells me that it is distrustful and you have to reprogram the ECU to erase the fault codes, for that I ask me to order the EEPROM and change it to the vehicle.

Hello friend I read your problem, I think that erase stored codios is a good idea worse, be very careful to reprogram the ECU. I have a Nissan pick up truck and the same thing happened to me, the very low slowdown and when I started it tended. It was pure theirness in the body of acceleration, take it out, clean it and make an alomejor injectors are covered and are not able to open well with low revolutions, it does that first, greets Atte. Juan