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3 wires from tps sensor

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Old 05-24-2010, 09:13 AM
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Default 3 wires from tps sensor

Checked the pinouts of the ecu and i see there's one for the tps, I'm guessing the remaining 2 is ground and some power connection?

I'm trouble shooting a tps issue i have where the voltage jumps up and down from .4 to .8 every few seconds or so (even when the tps is disconnected). So i'm trying to see if there's something in the wiring or my ecu directly..
Old 05-24-2010, 10:22 AM
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You should have a CEL. Just pull the code.

Not sure were the cables go to but it should be detailed in the service manual.
Old 05-24-2010, 12:08 PM
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I've ruled out the TPS as the culprit because the fluctuating voltage is still there even when the tps is d/c.

I'm trying to figure out if its the ECU or the wires. I have an obd2 scanner that reads the tps output to the ecu, and you could see that the tps would go from .4 to .8 back and forth every few seconds or so. It doesn't stay at 4, or 8. As you can see this would cause driving issues if i plugged in the tps, so as of right now i'm driving with it d/c.

Thanks for the input.
Old 05-24-2010, 12:13 PM
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The TPS is connected to the ECU, all three wires. One is ground, one is 5+ reference and the other is the signal.
Old 05-24-2010, 03:03 PM
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OK I THInk i found the matching wires for the tps: C27, C18, C28. Just gotta confirm with my manual. Thanks Stratocaster
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