Gidday guys and girls
an update, and a question...
Update first: Car still runs!
Made a replica Mad Max supercharger switch for funsies
And painted the interior plastics because the wrap was peeling off, still needs a cut and polish for more sparkles. Have got a dual USB socket to plug the old cigarette lighter hole
Aaaand found some foglight delete panels on a wreck at pick-a-part. Not 100% sold on these yet though, they might come off again soon when the bumper gap annoys me too much XD
In the quest to figure out the hot-start issue I splashed out and got a boost referenced fuel regulator and AN fittings for the engine, plus a new pump for the tank, and new injector O-rings and seats for laughs. Got rid of the PRC solenoid as well, which has tidied things up slightly
BUT, here comes the question: Fuel pressure is set at around 40psi cranking, 32psi idle. The car cold-starts and runs great. As soon as the engine is turned off, fuel pressure bleeds away over about 30 seconds. And the car still won't start after driving for a while.
Is that normal or should the fuel system hold pressure for longer?
Manual states a line hold pressure of 22psi after 5 mins but that's with a special service tool cutting off the main feed line before the fuel rail so I don't 100% know what the whole system is meant to do...
If it is normal, then my next guess is that the ignition coils are heat soaking and cooking, which might be the perfect excuse to upgrade to a Yaris coil-on-plug setup.