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My sonata 3.3 dies when switching from forward to reverse and vice versa. Suspecting the fuel pressure regulator. Have seen conflicting sites saying its on the firewall and some saying in-tank. Does anyone know where it is or any ideas on what else may be causing this. Thanks
 

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Not a fuel pressure regulator,,, the engine runs..

Pressure regulator is in the fuel tank added to the pump-filter module... thats why you have single line feed fuel rail with no return.

Pressure regulator is the silver canister looking thing in the pictures
 

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