One possibility is the fuel pump is letting fuel drain back into the tank when the engine is off. Every time you turn the key on it allows the pump to run for 3 or 4 seconds, and that pumps up the pressure until it gets high enough to start the engine. So check fuel pressure with a gauge.
Answers & Comments
One possibility is the fuel pump is letting fuel drain back into the tank when the engine is off.
Every time you turn the key on it allows the pump to run for 3 or 4 seconds, and that pumps up the pressure until it gets high enough to start the engine.
So check fuel pressure with a gauge.