o i forgot, later d40's have fuel lift pump in the tank.
in which case i'm surprised you have to prime it. most of them with lift pumps will self bleed.
come to thing of it i don't think they even have primers on those ones.
i'll add a bit.
there is a valve on the filter but thats a thermostatic valve to return hot fuel to the filter in cold weather. it also doesn't have electrical connections for an ecu to make it do anything. ie NATS can't control it.
there is no electrically operated valves in the fuel system...
agreed. thats absolutely correct. electrical noise can screw with the fob signal.
its a separate issue to the fuel and not related.
no. there is no special valve in the system for that. they are talking complete BS.
fuel draining back due to air leaks on the fuel line is a very common problem...
fuel should never drain back to the tank. that usually indicates an air leak somewhere, air gets sucked into the line. common place is fuel filter.
some people add a one way valve back at the tank at a low point, which helps.
your far better off testing the wires for the radio. if things go wrong, shorts out, it blows the radio fuse not fry your main ignition line and kill the ute.
boost on its own won't do much.
fueling is key, however you can't let EGT's get to high. egt gauge is a must.
i also highly recommend an intercooler. it will do more than what increasing boost will do.
the output is also limited by the regulator rating, ie spin it to fast you will blow the regulator. eg 60 amp regulator is not going to like 90 amps being pushed through it.
the other thing that helps is fitting a bigger battery. that helps with things that draw a lot for a short time. it won't...
might pay to jump on the UK navara forum.
downunder didn't get a lot of those engines (nz got them in 2wd, and aussie never got them at all). they are also the ones that had conrod bolts come loose and throw the main bearings. there was lawsuits etc. all good fun.
uk guys should have info on...
it might pay to understand the engine he has before commenting.
only way for it to be a throttle butterfly problem is if someone puts the vac hoses on wrong. but even then it wouldn't explain why it ran fine for a day.
sounds like you need to pin point the exact cause.
it kinda sounds like you got the usual bs answer "it sounds like its the turbo" and its often the really expensive unrepairable one.
it can also be an exhaust leak. for eg egr pipes are known to crack.
so you need to confirm that it actually is...
which turbo is failing?
or do you have the single turbo model?
also how is it failing?
there is some talk of the turbo control valve getting plugged up with dirt.
single cabs always get hot quickly.
if it was 28c out side i would have aircon already. that sounds pretty normal to me.
the cab is always going to get heated from the engine itself via the firewall, i suspect the insulation is pretty minimal as they where a budget ute. plus the heater actually...