TPS troubles
#1
TPS troubles
I just replaced the ip in my dads 94 and started to adjust the tps and I can't get the voltages anywhere near close enough. It is a brand new tps. I have 4.99 volts to the constant wire but the center I can only get .44 volts at idle and the most I ever got was .70 at WOT. I'm starting to wonder if I have the adapter that you put on the throttle shaft is in the wrong position. Does it go on a certain way? Thanks in advance guys!
#3
Did you buy the Sensor from autozone/duralast? If so, return it! I'm replacing a TPS sensor today. I've read that the connector terminals has a tendency to spread out and stop making a good contact against the TPS. The connector can be taken apart and the terminals squeezed back together with some pliers. Napa sells just the TPS pig-tail if it needs to be replaced. The only other thing is to make sure your Multimeter has a good ground and that youre back-probing is successful.
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#6
I didnt take off the adapter, I simply removed the 2 t-15 torq screws. I do have some specs for you based on my new NAPA sensor. Between terminal A and B, there should be 380 ohms when the sensor is relaxed. When you twist the potentiometer, the resistance should rise to 3.5K ohms. I think your sensor is fine and you just have it clocked wrong. Heres how I clocked mine; Install the sensor into the bracket/adapter with the connector at the 12 oclock position. Then rotate the sensor counter-clockwise til you feel the potentiometer begin to wind up. The TPS connector was at the 9 o'clock position on my engine. The screw holes should be pretty close. Install the screws and check the voltage with your multimeter. If its not close, loosen up the t-27 torq screws on the pump and adjust the bracket.
#7
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#10
A picture is worth a thousand words...
IPtoTPSAdapter.jpg Photo by fhafer1964 | Photobucket
Hope this helps!
Cheers
IPtoTPSAdapter.jpg Photo by fhafer1964 | Photobucket
Hope this helps!
Cheers
#11
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crandallf150
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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08-13-2017 06:18 PM