I have the 2006 version of this motor. I pulled my hair out two seasons ago on this problem. Replaced fuel pressure regulator at top of VST, fuel pump twice, map sensor, and still no fuel condition. When you depress Schrader valve on top of fuel rail, fuel,should shoot out with pressure. At present, no fuel at all comes out when I depress valve. If I remove spark plugs and spray fuel into cylinder will Start...and stall. Ended up going to wits end and replacing the ECU as I could think of no other part to cause issue as both wires to VST go into loom, wrap front of engine under pull cowl and go direct into ECU. Seems the ECU controls voltage to the fuel pump. I read elsewhere that the board inside changes the ground voltage to control pump velocity. ECU is $850. Well, it worked like magic, err, like it cost $850... Plugged new one in and voila. Ran perfect and as normal. Well, here I am again. Same condition as motor quit on me again. ECU lasted two years. Garbage. Now I have the fuel pump connector disconnected and if VST is hard wired to 12v motor runs as normal... well... what to do now....
just wanted to share. This is really a tohatsu motor......
