Where is the speed sensor on 1991 Previa - Cars & Trucks

Please check the attached links: http://www.autozone.com/repairguides/Toyota-Previa-1991-1997-Repair-Information/ELECTRONIC-ENGINE-CONTROLS/Throttle-Position-Sensor/_/P-0900c1528008a21b
http://zenseeker.net/Previa/PreviaMaintenance-Engine.htm

right after the air cleaner

probably the main one. did you try the map sensor. my dad had one that he spent alot of money on and come to find out it was a $26 map sensor that plugs in on top of the motor.

There are many reasons why the engine and the emission systems fails a smog check. If you go to this page it will give you ideas on how to pass the test next time around.

The door afar sensors are located in the door latches. Try spraying all the door latches with wd40 penetrating oil and see if that helps.

pop fuse cover, remove vent housing, remove speedo upper cover, remove 4 bolts holding speedo remove speedo, change bulb

remove the the diff unit and refit into your casing ,,,easy job,Preload on pinion bearings and set crownwheel backlash to a very small wiggle woggle.handful of LM grease in unit before you refit cover then use ep90 gear oil .job done shouldnt take more than a morning to do.

Did you have to remove front drive shaft to replace stabilzer link bars?

On the tailshaft of the transmission there is a speed sensor. Under it is a gear, driven by the output shaft of the transmission. The output dshaft rives the gear, and the gear shaft drives the sensor, which sends a voltage to the speedometer for MPH. If this sensor is bad, you may also get a check engine light on. Remove the sensor, & inspect the gear. If the teeth are OK, replace the speed sensor.