It sounds like you have a bad tps.(throttle positioning sensor) it tells the onboard computer how far you have your foot on the accelerator. its like the volume control knob on a radio.after repeated use it gets scratched inside and starts to send a bad signal to the onboard computer. the computer is doing what it is being told. unfortunately in your case it is the wrong signal.Next is the fuel filter,and the fuel pressure regulator. this 2 items will also make up and down abnormal idle.one more possobility is dirty fuel injectors. dump some fuel injector cleaner or get a professinal injector service clean at a repair station.
no 84 and 85 change out.
Probably not.
Front top of the intake manifold.
It stands for nothing other than Nissan's model designation. In the U.S. the D21 is called the Hardbody.
follow the wire from the positive side of the battery it will lead you to it
yes
no
no
no
no 84 and 85 swap out.
no sir ,87 and 88 change out.
no,the specs. are not the same.
yes
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