Harness Problems with My K24 HELP!!!!
 

So I'm new on the nissan scene so please guys if u can help me i've would really appreciated, the guys at the shop where i have the car told me that the harness underneath the dash is from a single cam, and i recently got a k24 dual cam in it, so now my question is does that affect the swap, and if it does what should i do? because according to them the car is not cranking up because of that

Dash harness is the same. The dash plug to the ECU harness is different between SOHC and DOHC cars, cut and rewire as you would any engine swap.