Golf 1.6 SE petrol - Wont start when hot or after short journey - hajtool

I have recently had the car serviced and a new timing belt fitted.

Aftter a short journey or when hot car refused to start. It will fire/turn over but will not pick up. An orange light was showing which suggested a coolant sensor was causing the problem but the garage have told me it has been tedted but not replaces. Would appreciate some advice, thanks

Golf 1.6 SE petrol - Wont start when hot or after short journey - injection doc

coolant sensors very prone to failing but often just default to a generic setting as a way of getting you home !

So if the garage read live data for coolant sensor it may appear tpo give a reading.

Could be many things but money on coolant sensor first, especially as its flagged a fault, or wiring issue.