Car with spanner warning light

[Bunsen25]

Looking for some help I have a 07 plate Vectra just had new clutch and flywheel fitted and now this warming light has came on. Car losses power n cuts out, I’ve had it on a diagnostic machine and no fault codes come up. Any ideas?? 

[Vauxhall Owners Club]

Hi...welcome to the Forum

First thoughts are something may not have been plugged back in properly after removing the transmission.
I would look in the general area where the gearbox is and see if everything is secure.

 

[Bunsen25]

Hi thanks for getting back to me I have had a look and everything seems to be in the correct position. 

[Vauxhall Owners Club]

The only other thing to look for then would be the Crankshaft Sensor which if defective would cut the engine and then sometimes restart later once it has cooled down or in the worse case, not at all.

It won't necessarily always bring on a lamp but I would look towards changing it if the resistance is out of range or just cheap enough to replace regardless.