Most of your codes point to the VVEL system. The U1024 has the highest priority and should be looked into first.
The VVEL communicates to the ECU on a dedicated CAN bus. The easiest CAN bus check is to measure the resistance between CAN H and CAN L and it should be around 60 ohms.
The 1,000 RPM limit is the fail-safe for the electronic throttle and that relates to the P2101
If that was my car, I would examine VERY carefully all the wires related to the VVEL system and the throttle bodies. Unplug them and check for corrosion or bent pins, then plug back in.
After that my next step would be to scope the throttle body position sensors, VVEL power/grounds and the VVEL CAN bus to verify a proper signal.
Since most don't have a scope, a multi-meter will allow voltage checks.
If you don't have a good understanding of electricity/meter use, you might want to find mobile tech that has these tools and Nissan/Infiniti experience.
How did you determine the VVEL relay was "blown"?
|