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It seems like the problem lies with the engine management system, rather than the brakes. Given that you've already replaced the MAF, MAP, and TPS sensors, here are some other things to check:
1. Vacuum leaks: Inspect all vacuum lines for cracks or damage that may be causing a leak. A vacuum leak can cause erratic idling, poor acceleration, and stalling.
2. Idle air control (IAC) valve: The IAC valve controls the engine's idle speed. A malfunctioning IAC valve can cause the engine to stall during idling. Try cleaning the IAC valve with carburetor cleaner and see if the issue is resolved.
The idle speed would not change if you unplug the IAC. It has a small electric motor that opens and closes the air port depending on a signal from the engine computer. The motor won't move if you unplug it.
Do you have a check engine light on? First thing I would do is unplug the IAC motor when the engine is warm. If the idle speed doesn't change you have a vacuum leak or a bad IAC motor. If the idle speed goes down you might have a bad TPS or IAC
WHEN YOU MOVE SCREW YOU CHANGE TPS VOLTAGE READINGS YOU WILL NEED TO MONITOR TPS VOLTAGE AND ADJUST BACK TO SPECS DONT KNOW EXACT BUT SHOULD BE AROUND .50 AT IDLE
As a factory Nissan trained Technician with dealership experience - it can be many things, but it sounds alot like a mis-adjusted or faulty TPS, and/or a faulty IAC(Idle air control) valve - I'd try the TPS and set to appx. .50 vdc (.47/.49) Volts DC and if that isn't it, I'd definitely look to the idle air control valve ( allows for air bypass - sometimes called bypass air control valve). May then need base timing and idle set at shop with OBDII ignition disabling option, for seting timing and idle, otherwise computer won't allow proper setting...then if connector to IAC is OK - should be just fine...
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