Please can someone tell me possible cause(s) of hard start with Nissan pathfinder 06 model when engine is cold. I have changed cold start switch and complete fuel pump with casing yet the problem is there. Am just wondering if it has anything to do with brain box. Please anyone with an idea or experience should help me

What's the meaning of half start? Do you mean hard start? I think you should re-edit this post for us to comprehend better.

@Mayor2013. Yes hard start I mean. Thanks

A lot of things can cause hard start. Its better you run a comprehensive scan on that car first before throwing money around parts. If you are in lagos and you need to diagnose and solve the problem call multiautolab on 08156087872 or 08165520837

Scan the car, the crankshaft position sensor or the camshaft position sensor is bad, or the engine coolant temperature sensor may also be the cause. However these are not the only things that can make the car to hard start when cold or in the morning, so you need to scan the car and you need a person that can interpreted the live data.