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Two more ways to determine which one of the injectors leak:
1. Take intake manifold off and look. Inlet passage will be much cleaner around the leaking injector - leaking gas does wash away the deposits. No, I don't recommend this seriously - it's a biggish
exercise to remove the manifold on SVX.
2. Take the fuel rails with injectors out, plug one end with a finger,
pump some air into another end and watch for bubbles on the injector tips. You may need some soap and water...
This is probably the easiest and fastest way to diagnose it,
there is also a 50% chance that you would not have to remove
the second rail at all :-).
I had exactly the same symptoms - easy start cold & hot,
does not start warm until throttle is floored. One new injector is all it took to completely eliminate the problem.
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