No TPS, but TPS "creep"?

[opethmike]

Don't have a log handy at the moment to demonstrate the problem, but I have a funny one -

My setup is ECU -> Relay board -> sensors

I recently removed the throttle position sensor from my car, including the wiring from the relay board. But, for some reason, I'll see the TPS % in Tuner Studio slowly creeping up. Uh..... shouldn't it just plain do nothing?

[Spittybug]

Don't have a log handy at the moment to demonstrate the problem, but I have a funny one -

My setup is ECU -> Relay board -> sensors

I recently removed the throttle position sensor from my car, including the wiring from the relay board. But, for some reason, I'll see the TPS % in Tuner Studio slowly creeping up. Uh..... shouldn't it just plain do nothing?

Weird. I vaguely recall seeing something in the MS boards about grounding it even if unused..... just a thought.
Why did you remove it? Have you got AE working well with just MAPdot?

[opethmike]

I actually don't use AE at all. I've had numerous issues with TPS noise, regardless of what I did. Several TPS units used, wiring routes tried, etc, but I still received funky signals.

I only used the TPS signal to activate/de-activate the ignition vacuum advance solenoid. But the sporadic TPS signals would cause it to turn on/off at times it shouldn't, which obviously caused all sorts of running issues.

So after I realized (duh) that I could just turn the vacuum solenoid on/off based on RPM, I got rid of the TPS. I have no interest in going back to having one.

The grounding idea makes sense. I'll give it a shot and see what happens.

[Spittybug]

Don't give up on AE, it makes a difference!

[dmcjohn]

Are you sure you're using the right cover sheet for the TPS?

If you could go ahead and try to remember to do that, that would be great... Mmmk?

[dmc6960]

yes, it creeps up if nothing is connected to it.

[opethmike]

yes, it creeps up if nothing is connected to it.

Is it possible to stop it from doing that? Or some way to stop it from causing an erroneous flood clear condition?

[dmc6960]

Is it possible to stop it from doing that? Or some way to stop it from causing an erroneous flood clear condition?

Grounding the TPS input should accomplish that. Pin 22 of the DB-37.

[opethmike]

Grounding the TPS input should accomplish that. Pin 22 of the DB-37.

Thank you.

[Spittybug]

Have any of you guys tried/looked at my timing calculations in the forum? Would be interested in getting your feedback.