Pump runs for about 3min and shuts off - Hayward Pool Products Hayward Northstar 1HP Up Rated Pump

depending on the vehicle, try leaven the key in the on position for 30=40 min shut it off wait 3min and do it again shut it off wait 3min turn key on & off seven times then start the vehicle.

change air filter, clean all ground wires on engine and spray clean throttle position sensor. after reinstall turn key to on position 3min. then off 3min. this resets it

sounds like erratic connection on cable from thermostat to relay module

That's the motors internal thermal switch doing its job. For some reason your motor is running hot. With the breaker off, remove the end cap on the back of the motor and use a 9/16 open ended wrench to see if the motor shaft turns freely. If it doesn't there may be some debris jammed at the impeller, or the bearings may be failing.
If the shaft moves freely the problem is probably internal to the motor. Usually a bad winding, Northstar pump motors average about 4-5 years, so if it is older than that or getting close the best bet is replacement.

This is a common problem. You can get parts and instructions for this fix from www.TvRepairKits.com

sounds like low fuel pressure likely the fuel pump or fuel pressure regaultor

Look at the power supply module first, look for burnt parts, bad capacitors.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.

when u start it up let it run for a second then tap the gas let it idle down then put it in gear. it should run fine then. but its a setup in the staurn comp. its a constant cold start method.

it might be the fuel pump.