我更换了2014年日产的电子节气门主体...

Good Afternoon, my name is \*\*\*\*\* \*\*\*\*\* ill be helping you, so sorry to hear about the issues here on the Sentra, i know how frustrating it can be to deal with electrical issues. Whenever a throttle body is replaced a relearn must be done. This is for the idle. throttle position and throttle closed relearn. if the issue continues and we already have the new ECU then we can begin to suspect a deeper electrical issue within the wiring harness, for now just do all 3 relearn procedures which i have attached below

I did the relearn procedures, replaced the MAF, cleaned the battery terminals, replacing the shift lock solenoid today for a seperate issue. Still same thing. When I start the car it is idling at 1000-1500 rpm. Put car in reverse or drive and it does 10 mph without touching the gas peddle. The gas peddle does nothing. Also hooked it up the an obdII that connects to my phone after idling for 5 minutes. After idling, with the engine off and key in on position the temp gauge on dash read normal, the app is showing the Engine temp to be 220 degrees Farenheit, just at the edge of the red zone. MAF shows 0.23 lb/min, battery 11.9v, O2 sensore 1 shows 0.00 volts, O2 sensor 2 is 0.28v, Boost is NEGATIVE 13.1. OBD II codes thrown are P0123, P0223, P2610, P0603. 2610 and 0603 have been there since before fixing anything. 0123 and 0223 are new since cleaning the original throttle body and still come back after replacing the throttle body.

很奇怪。有了新的节气门主体并进行重新学习，我们可能正在处理更深的电气问题。我怀疑此时的ECM有故障。

这是我的第三ECM

Verify the wiring to the ECM, May be a good idea to try and monitor engine data with the car idling. In your model the throttle is a simple circuit and completely controlled by the ECM so we need to verify that it’s getting signal from the throttle position and then relaying those signals to the throttle body, so let’s use a scan tool to monitor those inputs and then verify that wiring is okay as well.

好的，如果我有扫描工具并启动汽车并让它闲置，我正在监视哪个信息。

Throttle position, accelerator pedal position, RPM. you also want to monitor what signal the ECM sends to the throttle body.