[m7ammdel]

Hi all, this is my first post here.

I own a 2008 i30 CRDi Diesel

I recently have had black smoke coming out of the exhaust, so I went and scanned with OBD II, the code results was P0121"Throttle Pedal Position Sensor/Switch (TPS) A Circuit Range Performance Problem"

I want to replace that sensor and see if it makes a difference, but I have no idea where is the throttle body, or the TPS Sensor.

Could you guys provide a picture and point where that sensor is, much appreciated.

[The Gonz]

I am going to guess that it looks similar to this:



and is located at the top of the throttle lever against the firewall like this:

.

Not sure but others might be able to very and perhaps you can check yourself and recognise the shape.

[CraigB]

Isn't the TPS (throttle position sensor) on the side of the throttle body...in the engine bay

[m7ammdel]

Yes, but i have no idea where is the throttle body on my CRDi.

[BrendanP]

It might be worth looking on PartSouq Auto Parts Around the World, and search using your vehicle VIN number. There seem to be a few variants of accelerator pedal assemblies, some with a mechanical linkage via a cable, others with just an electrical connection. If the pedal is connected to the throttle via a cable, if someone presses the pedal in and out you may be able to see it moving in the engine bay. I would expect the throttle body would have a sensor mounted it.

Conversely, if the accelerator is 'fly by wire' the sensor would be part of the pedal assembly. I would expect the ECU would monitor the position of the pedal sensor and then control a stepper motor in the throttle body so the throttle flap follows the pedal position.