Does anyone have a diagram of a single point fuel injection for a 1987 mazda 626 2.0L turbo?

 

Hopefully this may help answer your other post too. I am thinking that the fuel pressure regulator valve may be disconnected or a vacuum hose is loose in the system. This helps to boost fuel pressure while the turbo is pressurizing. It richens the fuel mixture when turbo is boosting...when it is operating properly. If there is no vacuum, it will run rich all the time as it choking the engine with fuel. I have included a pic of the vacuum hose system with the pressure valve labeled on the right side.

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