Truck was stalling at 1900 rpm. Tried cleaning throttle body and did not improve. Got new throttle body installed and now still stalls at 3000 rpm. I have replaced every sensor and still not right. Will check cat converter and see but I don't think that is the problem. I'm ready to give up and just sell it. Any help would be appreciated a lot. Thanks in advance. Regards, Tim
Change the fuel filter and pressure test the fuel pump.
Fuel pump replaced 1 year ago. Nissan wants $180 an hour for testing and they want 3 hours! They're crazy.
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Why do you go to dealer? I bet you if you spend the money in the dealer, they will tell you that there is no issue with your car.
Find an independent shop and have them check your car. In the meantime, you said you changed all the sensors. Did you use OEM ones?