i30 Owners Club

GOT PROBLEMS OR ISSUES? => DIESEL => Topic started by: m7ammdel on May 30, 2021, 13:07:42

Title: Throttle Position Sensor location?
Post by: m7ammdel on May 30, 2021, 13:07:42

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.

Title: Throttle Position Sensor location?
Post by: The Gonz on May 30, 2021, 14:20:25

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

(https://i.ibb.co/f2VK6Xw/s-l1000.jpg)

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

(https://i.ibb.co/zfF993v/Display-DTCImage.jpg).

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

Title: Throttle Position Sensor location?
Post by: CraigB on May 30, 2021, 16:31:32

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

Title: Throttle Position Sensor location?
Post by: m7ammdel on May 31, 2021, 18:16:05

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

Title: Re: Throttle Position Sensor location?
Post by: BrendanP on May 31, 2021, 21:04:40

It might be worth looking on  :link: PartSouq Auto Parts Around the World (http://www.partsouq.com), 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.