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The TPS throttle pisition sensor .It moves everytime the gas pedel moves .
Its a ware part on the side of the throttle body although it could be a bigger problem this is a good place to start with out getting to techinacal.
Its on the end of a shaft that runs through the air horn look at the throttle cable were it attaches to the throttle body the part that moves is were it is
Could be the cable that actavates the throttle plate on the intake..
The cable comes from the gas pedel and pulls on the throttle plane in the intake manifold.. opening the plate to let air flow through to the engine. On the other side from the cable is a plastic sensor with wires attached to it this is the Throttle position sensor.. if this is disconnected or broken the computer cannot receive the single that you are pushing on the gas pedel.. very rare for the throttle position sensor to break completly.. best posibility broken cable.. open hood find cable connected to throttle body, have someone in car push pedel see if it moves. Good luck.
on cool motor, remove fuel line to throttle body, turn switch to accessory position fuel should flow freely. no flow check filter located on frame rail. or defective fuel pump. pressure should be(if checked with good guage)45-55 psi. if all checks out throttle body jet clogged with gunk or you have broken-damaged throttle body wires. all of this i have found on 2.8 liter engines.-------jawstech goodluck hope this helps.
"Throttle" is the gas pedal. If you're looking for the throttle body, it's towards the drivers side firewall. Has a 3" rubber hose attached to it. Need to take off the plastic box on the very top of the engine to get to it. But is very easy to get to.
The TPS is located on the opposite side of the throttle cable on the throttle body. If you don't know what the throttle cables are, get a friend to sit in the van and push the gas pedal down until you see something moving. it will be on the opposite side of the movement
The throttle position sensor is most likely bad or it just may be the throttle cable but I think it is the Throttle position sensor it is located near the throttle valve follow the throttle cable to the end this is where the throttle valve is and the Throttle position sensor is located near the throttle valve on the opposite side it will have a plug going to it and it is held on with two torx head screws purchase the tools and replace.
Sounds like the TPS (throttle position sensor) at the throttle body
there is a black box on the opposite side to the cable mech, looking at
it from front of car place a multimeter into where the 4 wires enter.
between pin 1 (nearest to you) and pin 2 when the throttle is closed
(no foot on the gas) it should read 5volts if not losen the 2 screws
that lock it (this requires a very long screwdriver) and twist it until
it reads 5v.