Hello friends,

I hope some of you have had the problem that I have and which took more than two years moving from mechanical to another without solution.

Well, my car came with the VQ35HR engine and mechanical transmission.

When accelerating at about 4,400 rpm, the engine begins to fail, both the car stopped in neutral or moving in any gear.

When you put the scanner does not show any error code.

By heeding the mechanics that are basically guessing; I have changed the following:

Flywheel
Intake Camshaft Sprocket
Chain Tensioner
Spark Plugs
Catalyst Converter
Fuel Pump
Coils
Engine Coolant Temperature Sensor
ABS Sensors

And several other things that really do not remember.

The problem is that despite all these parts replaced and that the scanner does not indicate any error, the fault persists; has not improved or worsened.

Actually, the mechanics do not know what to do because apparently all is Ok.

Hopefully someone of you can guide me in the right direction.

Greetings to all and thank you.

 

I think what you are trying to say is that engine won't rev over 4400 rpm.
Is your car stock?
Any mods?
Are there any lights in the dash flashing when this happens? It sounds like its in limp mode.

 

Sounds like it's in valet mode...

Don't know what to tell you OP, never heard of this issue before. Good luck.