fault code 21

[v5uk]

21 Throttle Position Sensor (Voltage High) whats all this about and how do I fix it?? Mk2 astra gte

[Rob_S]

try a new tps boss. its the black plastic thing on the throttle

[v5uk]

okay call me thick but i need more info Rob wtf's a tps and where on the throttle?

[Vauxweb]

TPS = Thottle Position Sensor.

It sits on the end of the thottle butterfly shaft.

It has 3 wires going to it (could be 4) - just follow the thottle cable, and when it gets to the mechanism, you will see the TPS, on the other side of the thottle housing.

[Rob_S]

thicko hahaha

i will point it out later on mate