This thread is specifically for those who have, or wish to convert their RB30S carby to an EFI set up.
Printable View
This thread is specifically for those who have, or wish to convert their RB30S carby to an EFI set up.
slow internet warning!
for those who have forgone carburetion:
You'll need these components for EFI:
http://www.nissanpatrol.com.au/forum.../2016/01/1.png
Map of ECCS (advanced technology at the time)
http://www.nissanpatrol.com.au/forum.../2016/01/2.png
A chart of the inputs and outputs of the control unit.
http://www.nissanpatrol.com.au/forum.../2016/01/3.png
fuel system. this is an r31 skyline diagram
http://www.nissanpatrol.com.au/forum.../2016/01/4.png
very simplified air flow diagram. F.I.C.D stands for Fast Idle Compensating Device, it's what kicks in when the AC is turned on, to compensate for the extra load. the air regulator is like a cold start valve, it allows extra air to be put in to raise the idle. some people refer to it as the "electronic choke" but the control unit adds more fuel, the air regulator just adds more air for idle speed (more air past the closed throttle body). it has a bit of influence over the air flow meter too
http://www.nissanpatrol.com.au/forum.../2016/01/5.png
The crank angle sensor (CAS) and air flow meter (AFM) aren't bulletproof parts. if the engine just refuses to play nice, these two can be the culprit. CAS lives inside the distributor
http://www.nissanpatrol.com.au/forum.../2016/01/6.png
the all-powerful AFM
http://www.nissanpatrol.com.au/forum.../2016/01/7.png
more stuff, I adjust throttle valve switches (throttle position sensors) by taking off the connector, loosening the adjustment screws, putting a multimeter set to resistance across the top two pins, and setting it so when the throttle is open slightly the resistance changes. (this is for manuals, automatics have about 6 positions of resistance so need a more complicated adjustment)
http://www.nissanpatrol.com.au/forum.../2016/01/8.png
stuff
http://www.nissanpatrol.com.au/forum.../2016/01/9.png
more stuff, oxygen sensor, if your car is fine enough but is just running rich and using too much fuel, pull this guy out, he might be fouled or just worn out. you can't clean any carbon off these, they always need replacing ~$110 bursons retail
http://www.nissanpatrol.com.au/forum...2016/01/10.png
injector control
http://www.nissanpatrol.com.au/forum...2016/01/11.png
timing control
http://www.nissanpatrol.com.au/forum...2016/01/12.png
idle speed control
http://www.nissanpatrol.com.au/forum...2016/01/13.png
fuel pump control
http://www.nissanpatrol.com.au/forum...2016/01/14.png
basic diagnostic chart for driveability
http://www.nissanpatrol.com.au/forum...2016/01/15.png
expanded
http://www.nissanpatrol.com.au/forum...2016/01/16.png
http://www.nissanpatrol.com.au/forum...2016/01/17.png
another chart
http://www.nissanpatrol.com.au/forum...2016/01/18.png
startability
http://www.nissanpatrol.com.au/forum...2016/01/19.png
self diagnosis. early self-diagnostic technology, useful, but it's not absolute gospel. can be handy for AFM and CAS codes
http://www.nissanpatrol.com.au/forum...2016/01/20.png
how to do it
http://www.nissanpatrol.com.au/forum...2016/01/21.png
http://www.nissanpatrol.com.au/forum...2016/01/22.png
http://www.nissanpatrol.com.au/forum...2016/01/23.png
http://www.nissanpatrol.com.au/forum...2016/01/24.png
i've got more from this book, i'll have to sort through it
With regard to bolting on a turbo and engine compression, I talked to the local Dyno guy.
For a low boost engine, all that should be needed is low comp turbo pistons (concave or spoon crown) and a turbo compatible camshaft.
As the RB30 bottom end is strong, then the original rods should be ok. Using thicker head gaskets is not a good option.
on the vl loom there will be a 4 pin plug bellow the manifold near the bat. connect the 2 orange wires directly to the +12V side of bat. this will provide constant power to wire #1 in picture.
if converting from a rb30s settup a new accelerator cable will be needed also.
Can you please contact me ASAP 0455435952
Whats going on? You'll need someone who has done the conversion. I only started this thread to get as much info in in the one place, for those who need it.
Try starting a new thread and ask for help, that way.Quote:
Originally Posted by Gqpatrol2021
http://www.nissanpatrol.com.au/forum...-r31-loom-help
For those having trouble getting the injectors working.