Tps wont stay put

[Quiksilver]

2002 gen 1 turbo pc3 is. So I'm having this peculiar problem I haven't came across before, my to wont stay put. I have set multiple time before with no issues now I'm having issues. I have two used tps sensors that ohm out good. In dealer mode the tps bar is at bottom, I crank up for a to middle and rpa are around 1200 then I accelerate it goes to top. I notice at lights it can be on the bottom bar or top and when rolling off the throttle the tps position will be at the top. Pc3 unplugged and I can tell no difference. Could the pc alter the signal sent to the dash? I've seen like 5% at idle on pc3 and the bar on dash is at the bottom. Could throttle linkage or the throttle bodies be out of wack? Ecu possibly

 

[POWERHOUSE]

Setting the tps properly on the bike itself and then in the powercommander are two separate things. You have to do both.

 

[Quiksilver]

Roger. Check and check. Still moves around....

 

[POWERHOUSE]

Run a digital ground directly from the tps to the battery - same wire that is the pc ground. That should do it, lmk. . .

 

[Quiksilver]

Excuse me for lack of knowledge but could you explain what a digital ground is. Direct ground? Do I leave wires attached to tps and run an additional wire to the battery or disconnect the ground on sensor and run to battery?

 

[POWERHOUSE]

No, leave everything connected. You will "tee" into the ground on the tps and run it to the ground wire on the pc . . . please let me know if that works for you.

 

[Quiksilver]

Thanks Frank! I will give it a shot and report back.

 

[Quiksilver]

Well I was fooling around with the. One and decided to wiggle some wires. A friend noticed the tps moving when I did this. I think I may have over tightened the fuel injector harness too tight. I took the tape and zip ties off and the ad seems to stay put.
Frank, should I run another ground still? Or was that for troubleshooting purposes?

 

[POWERHOUSE]

Sometimes with the addition of a PC (usually an older one), we would get a floating tp. Running the ground would always solve the problem. If you are good now, I would not go further unless the problem comes up again . . .