PEUGEOT 106 XT gasoline pump

Hello, my problem is with the Peugeot 106 XT year 98 gasoline pump year 98. Normal marching the press of the 40LBS brand pump when they accelerate the engine gradually decreases the pre -ancient to reach 35lbs. The real problem is that when I want to get up after a stop it stays as a stuck, I have to put my foot thoroughly to advance but only in the lift. What will the exact measures be very helpful or somewhat advice to correct. Thanks in advance.

You must first know what displacement is the machine first ... Give me the displacement of the engine and send you the data.

Hello, it is 4 cylinders 1.1 (1,100)

I get that the normal pressure is 1 bar apximously 14,5004 lb/plg2 I see that the pressure is going well. Check injectors