Touran 1.9TDI Throttle Sensor/Glow Plug Fault

[Kiyonari]

Just checked the pins on the d plug in the bulb holder. Not sure which pin the earth is but there are about 7 pins and all clean and ok. i thought id mention as i read somewhere that the TPS problems can be linked somehow . currently the bulb failed light is on for the rear brake light, but the actual bulb is working ?!?!?!

[Crasher]

Earth is the brown wire.

[Kiyonari]

Cleared the faults and they haven't returned. It has been losing power still but not enough to trigger engine light it seems 🤔 yes earth terminal is fine. Safe to say glowplugs are ok and other fault nay be causing them to flag?

[Hair Bear]

If it's any help, I occasionally get the flashing glowplug light with 'visit workshop' message when braking. Soon after that the left brake light bulb will usually fail.

[Kiyonari]

Yes this is what i get, no power problems for you though??

[Kiyonari]

Actually not under braking. It says the left bulb has failed and it hasn't.

[Hair Bear]

When it happens on mine, a touch of the brakes brings the fault up, but the warning with the flashing light will stay for 10-15 minutes then go out and back to normal. The bulb may not have failed, but changing it anyway usually sorts it.
As a curiosity, do you have a towbar fitted?

[Kiyonari]

Yes it does have a towbar. The car starts up and runs fine so possible that the glow plug fault and throttle fault are completely separate issues? Have you scanned yours to see if it throws and faults?

[Kiyonari]

Changed the pedal with a one from a caddy, no problems since