Other ( non Renault ) Renult K7m Engine Misifiring whwn raining

[Arshley]

Hello all,

I have this Renult K7m engine running on a Nissan NP200 vehicle.

The problem is that whenever it rains and I drive even without driving through a puddle it has the following problems:

1. Engine Misfiring
2. Break Pedals becomes hard
3. Strong unburnt Petrol smells

Recently we changed the ignition coil pack , HTC Cables and Spark plugs

What can I do