The 1992 Nissan modulator valve can be found on the firewall in the engine compartment. The valve will be on the drivers side of the firewall.
bring it to transmission shop
That year model did not have a modulator valve on the transmission.
In the transmission in front of the modulator
about 3,000 lbs
No there is not.
yes the trans is the same in all 91-94 for the 1.6L motor
yes
Tighten it up!!
crank sensor bad, MAF sensor bad, dirty throttle body, idle air control valve
Behind the water pump
The flasher unit on a 1992 Nissan Sentra is located under the dash, near the hood release. It sends an intermittent signal to the turn lamps to trigger the familiar flashing.
There is a modulator on some transmissions. If yours has a vacuum line going to the trans, it connects to the modulator and you simply remove the bolt holding it and pull it out.