It's in the exhaust manifold. Be aware that some 99 camry's have air-fuel sensor, others have oxygen sensor instead at the same place.
Inside the fuel tank.
Fuel level sensor is in the tank with the fuel.
Inside the fuel tank.
there is no fuel pressure regulator " sensor ", there is a fuel pressure regulator controled by vacuum located at the front end of the fuel rail.
Yes, this generation Camry is a Fuel-injected engine.
You can find it under the battery on that side which is closer to the driver chair.
You can find it in the exhaust manifold. There is only one sensor over there. Sometimes the sensor is called oxygen sensor because on some Camry models at the same location the oxygen sensor is installed. Most of camries have oxygen sensor.
On to of the fuel tank, located under the drivers seat. There are two fuel tanks.
Trouble code P1133 means: Air-Fuel Sensor Circuit Response Malfunction
The MAP Sensor on a 1999 Tacoma is located on the top of the manifold. It is held on by a clip on the driver's side of the Electronic Fuel Injector (carburetor).
under the hood next to the fuel rail and vacuum hose
It is in the fuel tank.