Try unplugging the electrical connection to ONE fuel injector, and try
starting. If no change, plug it back in and repeat for the next injector.
Repeat through all injectors if necessary...
If it starts with one of the injectors unplugged, there's a probablility the
injector is bad and is grounding out the computer controlling all the
injectors. Replace bad injector and problem goes away.
This happened to my '91 Cierra. Was traveling, shut it off, and wouldn't
ever start after that. But it ran on WD40 sprayed into the intake, like
you're example. For me, i merely left the bad injector unplugged and limped
home on 5 cyclinders ...
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