Hi all A lot of insulating parts are used to ensure the fuel rail is fully insulated throughout (albeit three screws actually connect the rail to the block to hold it down) But then, the end of the Rail on the passenger side, is thenfully and properly earthed out? Meanwhile the Drivers side is seperate and not earthed out at all (except for the three screws holding it down) I have seen some custom earthing strips that do join the whole rail - so I am wondering why nissan did not fully earth the drivers side out properly and why it is kept seperate to the passenger side rail? I am wondering whether I should earth the drivers side rail deliberately to get a better connection on that side of the rail as well but then am wondering why there are so many insulating parts to suggest it should be neutral anyway? What was nissan doing here and why? What is the go with this? - anyone? Surely Nissan had some sort of intention here, rather than just doing something poorly and confusing? Regards Misszens evil other half :zlove:
is the insulation not there to prevent heat transfer? Whether the fuel rail is at the same equipotential as the rest of the motor is not important, as the injectors are 2-pin, and have no reliance on an earth. I could be wrong..... would be far from the first time.
Good logical answer - but..... Sounds like a very good and logical answer! I will assume then those custom fuel rail conductivity plates are made by an idiot that has no idea. ...But why would nissan earth out one side though, given as you say it is a two pin injector?
One possible reason would be for the fuel temperature sender. They've used a single terminal sender ( maybe for size reasons? ) so it needs to be grounded somehow. And it's on the LHS rail, where the ground strap goes. Don't take that as gospel though.
As Mick says the LHS rail is earthed to complete the circuit for the temp sensor. The Insulators on the rails are to prevent heat transfer not for electrical insulation.
