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TPS wireing on the FuelInjectionPro MPI


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After a few years of having this complete system sitting in the garage, I finally decided to install the kit. There is only one thing that I can't seem to find anywhere, that is how or where or what sequence the 3-wires are plugged into the TPS. I read some where if hooked up wrong could cause damage to the system. If anybody can help me with this, it would be greatly appreciated
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It would help to know which TPS pigtail you're attempting to splice together but I can give you some general guidelines. The 3 wires are 5V from the controller, ground back to the controller and signal back to the controller. You can't cheat and ground it to the motor, it has to go back to the controller, make sure of this. The Starquest pigtail will be green wires with stripes, red stripe is +5V, white stripe is signal and black stripe ground. Ford uses gray wires but with the same colored stripes. On the connector the middle pin is ALWAYS signal so you can't get that wrong. The other two are the 5V and ground, if you accidentally reverse them the TPS will work backwards, meaning it will be 5V with no throttle and pretty much 0V with the throttle mashed to the floor. Nothing will be harmed, just reverse the power and ground so you get 0V or close to it with no throttle and 5V or close to it with the throttle mashed to the floor. Then don't forget to CALIBRATE your TPS, under tools in megatune or tuner studio.

 

And when you realize how terrible the firmware is I can reflash that for you. Terrible is relative, its just old and massive improvements have been made.

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