Been experiencing some hard start situation random occasions. Finally have a gauge on the rail and situation occurring. First turn of key no start gauge reads 40 psi second turn 58 psi and starts what do you think
Died at light on way home tonight fired right back up made it home 10 miles. Runs fine when not doing this… no codes

 

anyone have an idea? Guess Im changing pump tomorrow. Anyone know if the cutting an access hole in a 2001 Z28 convertible works without problems? There is probably less room to remove pump in convertible. Hope it works

 

mods? what pump in it now? fuel rails?
We can throw out ideas all day long but we need details to make an educated guess

 

Delphi FG0154 basically stock pump. Only mods are SLP airlid basically bone stock. Pump that is in it is only 2 yrs old less than 12,000 miles

 

Check power at the pump. It sounds like one of the terminals in the connector is on it's way out

 

will do. Not sure about the previous guy I had do last pump made good connections at the slices to the new pigtail

 

Replaced pump last weekend and I seem to have same situation. Random cranking no start at first turn of key (sometimes). Most of the time it starts right up. Fuel pressure is bleeding down fairly fast even with new pump. First turn of key no start gauge reads 40 psi, second turn 58 psi and it will start.
If I just turn key on and dont start engine I hear the clink of relay, sound of pump running, the gauge goes up to 58 psi then a second click of what sounds like a relay and then pressure drops to 48 psi. Leave key on and dont try starting pressure in 3 minutes drops to 45 psi, 5 minutes drops to 40 psi. Turn off key turn again primes to 58 psi second click drops to 48 psi. Start engine and maybe my imagination exhaust smells rich or unburned fuel. Maybe injector leaking?