There is an 02 sensor ahead of the catalytic converter and one downstream of it.
If its shorting or open, then YES
There are a number of reasons why your Toyota Previa will not start. You should ensure that the battery is working properly, that the engine is able to pump fuel and if you cannot resolve the problem, you should call a mechanic.
you will need a new thermostat to cure this problem. ian
i had the same problem mine snapped off but there is a wonderful website called http://previaparts.com its awesome and they sell a lot of parts that are hard to find for the previa =D
Toyota Previa was created in 1990.
White smoke indicates water indicates water in the mix! If your head gasket is ok then it could be you have upset the fuel mixture and you are burning too lean, the lambda sensors are getting upset with the exhaust fumes and then the engine management is unhappy and kills the engine when you stop (or chugs when you travel). Get it to a garage and have it tuned. i've got same problem with my '93 previa with 184,000 miles on it. i read somewhere the problem could be a sticky choke. will tell you more after i fix(hopefully) it sometime next week.
-There is no 2000 previa you must mean a 2000 sienna! The last year of previa was 1997 -Yes in North America, the last Previa model was in the year 1997 and it was succeeded by Sienna but aside from NA, the Previa is still in production (NZ-Previa, OZ-Tarago, Japan-Estima)- http://en.wikipedia.org/wiki/Toyota_Previa I own a 2000 previa model here in NZ.
Follow the link below to the Previa user group.http://autos.groups.yahoo.com/group/previa/message/32333
Previa in medical terms is often used as shorthand for placenta previa. Placenta previa is a condition in which the placenta is situated low in the uterus. Because of this malposition, at delivery the woman can experience a great loss of blood.
I have the same problem but I have a Yaris. Try turning the engine on and off 10 times. That's what ford does.
It means you are having a problem with the charging system. Have the alternator and battery checked. Good Luck!!!