Misfiring on start up, mostly under cold,dampy conditions ...After a minute , the engine is running ok ....

Ignitions leads, central coil, complete MAF unit and sparkplugs already excluded .....(3e cylinder sparkplug was soaked)

MY97 GTT ....who can give a hint... ?

 

Sounds like the coolant sensor, given the cold start probs.

D

 

.......too much resistance due to bad contact, making ECU think that it is very very cold outside and engine needs some extra juice ??