Disconnect battery negative. You have to take off your throttle and cruise control cables from the top of your throttle body. Then unplug your idle motor and TP sensor. Then take and remove and mark all your vacuum hoses from the throttle body. Remove the 4 bolts holding the throttle body to the plenium. Unbolt the TPS and install in reverse. Get a new throttle body gasket in case you old one rips but I would use a new one anyway.
It is mounted to the throttle body.
It is located on the bottom of the throttle body. You can find the throttle body by following the two big air pipes from the air filter box, they end at the throttle body. To access the throttle position censor you must remove the throttle body.
I had the same problems and it was 3 sensors gone bad. Map sensor, Throttle position sensor and mass airflow sensor. Have those checked out by a reputable mechanic 1st.
On the E150 (1996 is my model year), the TPS is mounted on the bottom of the throttle body. Usually you need to remove the throttle body to access the TPS.
Yes there is a Map sensor.
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Tits
probably the sensor
It is near the throttle body. There is an electrical connection and two hoses, one of which connect to the throttle body.
Which temperature sensor? There is an air-fuel charge sensor, and a coolant temp sensor.
The EVP (EGR Valve Position) sensor is mounted atop the EGR (Exhaust Gas Recirculation) valve near the right side of the throttle body (5.0L and 5.8L). The entire assembly is near the front of the right side of the engine. The EVP sensor has a three-wire electrical connector and attaches to the EGR valve with three small screws. The sensor is mounted in the same location atop the EGR valve on the 4.9L (inline 6) however the entire assembly is nearer the mid-point (fore-to-aft) of the engine.