Fuel exits from regulator. Car does not start when regulator disconnected. (Just thought I'd try. Relay ok (replaced). There had been some prior issues, but ignition repairs (cap, rotor, plugs) cleared that up. Just only starts (and runs great) on the residual gas in rail when fuel line disconnected. (Yes, I direct it into a container away from the exhaust, etc.) No codes come up.
 
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Ask Your Question1990 Volvo 740
Question: The car only starts when the fuel line is separated from the fuel rail.
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