HOWTO TELL WHICH TPMS SENSOR IS BAD demonstrated on FORDIf you have Ford and you have TPMS light / tire pressure light on your Ford because of a bad sensor Keepthe screws loose and slowly turn the TPS counterclockwise until you feel it hit the throttle valve shaft. Then dial the correct millivolts by turning counterclockwise. It's very touchy and should be close to the right voltage at that point. I seen you physically sticking the meter leads in the connector grommet.
P1290= Elec Throt Control Particulate Bank 1 Idle, This means you could have a problem with your throttle body. You will need to monitor your tps sweep on a scan tool to check for spikes. Sometimes this code is set when the battery is disconnected and resets adaptations. If it keeps coming back, you most likely have a bad TPS sensor.
Athrottle position sensor (TPS) is used to monitor the throttle valve position in internal combustion engines. TPS is usually located on the throttle valve spindle so that it can directly monitor its position. The TPS sensor is a potentiometer, providing a variable resistance depending on the position of the throttle valve (and hence throttle
Thethrottle position sensor (TPS), converts the (throttle valve) position, into a proportional voltage signal. Which is then fed to the engine control unit (ECU). Consequently, the information from the throttle position sensor (TPS), is critical for proper start up and smooth throttle response.
Ap. a faulty ignition control module can cause a number of problems. 1. check engine light is on: the ecm monitors all parts of the vehicle that could affect emissions. this includes the ignition system. if it determines the ignition module has caused a problem with the system, it will turn on the check engine light.
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    • how do you know when your tps sensor is bad