Maybe just a Pedal Position Sensor (PPS) which will be far less expensive than a TB! And easy to swap yourself.
Great tips! Thanks!Let's start with some background. This this happen all of a sudden or gradually get worse? What shape is your battery in? If in doubt load testing is free at auto parts chains. Check ground from battery>bulkhead>engine.
When you replaced your plugs how did the old ones look? Did you slather the coils with noox when reinstalling?
Remove TB connector clean with electrical contact cleaner and then treat pins with Deoxit or Stabilet22. I would also check the TB for loose bolts on the inside per turbophil. Check Engine Light: Throttle Position Sensor issues.
Sprayed DeoxIT on the PPS sensor (pedal) connectors. Didn't fix the problem.Need a scope on the signals to know for sure which sensor is causing that. The PPS reports what your want to the ECU, and the TPS reports what the valve is really doing. The ECU basically tries to "match" the second to the first, with some algorithms in between based on engine conditions.
If I had to guess, I'd fault the TPS. An easy scenario would be that when you punch the pedal the ECU tries to get the valve to react faster too, but if the TPS reports invalid data the ECU may cycle the valve as an attempt at recovery. It's harder to explain this behavior based on PPS failure, because if the PPS fails the ECU shouldn't command the TB to do anything... after all, what would be the "correct" throttle setting when the PPS data is corrupt?
I believe both the PPS and TPS only comes as complete assemblies (TB and Pedal box).The PPS is part of item 15 in that image. I'm not near an Elige right now but expect #15 to be under the dash. If you want to replace it, I'd seek to replace just the dual pot and not the whole assembly. Very likely it is an off the shelf part.
I still think the TPS is more likely, though. No reason to suspect the TB (yet), the actuator appears to be working just fine.
You've only messed with the connectors. The elements and wipers are much more likely to be the culprit. But the sensors are not serviceable, so you would need to replace each sensor as a unit. Not necessarily the whole pedal assembly nor whole TB, just the sensor(s).