Water ingress into engine bay on Fiat van, error on code reader is 'Cylinder 1 injector Circuit High'. Fiat Ducato x250 windscreen scuttle leak.

'Cylinder 1 injector Circuit High'
'Cylinder 2 injector Circuit High'
'Cylinder 3 injector Circuit High'
'Cylinder 4 injector Circuit High'

The sealant is here: https://amzn.to/40E9q7g
Mastic gun too: https://amzn.to/40iK5zU
Window wiper puller: https://amzn.to/3lQPgrA
Engine management reset machine: https://amzn.to/43Hsa7G