350 mag mpi 2000 won't start

[Ignatios]

Hello Gents,
I'll try to make it short and sweet...so I have 500 plus hours on this engine ran with no issue at all the previous week starts right up all is good the following week would not want to start it strutle here and there but wouldn't start...can you help me out with a list of possible items that can cause such a problem ... thank you in advance.

 

[alldodge]

Kill switch, fuel pump, IAC, ECM, blown fuse

Check for 12V at the coil
Do you here the 2 beeps and the fuel pump turn ON when key is turned to ON?
What is your serial number?

 

[Ignatios]

Kill switch, fuel pump, IAC, ECM, blown fuse

Check for 12V at the coil
Do you here the 2 beeps and the fuel pump turn ON when key is turned to ON?
What is your serial number?

Hello yes I hear the peeps, serial number is L365398

 

[alldodge]

Unsure but could be a MEFI-1 or 2, in any case trouble shooting will be the same.

Is there 12V at the coil with key ON?
When cranking can you see the Tachometer show at least 300 rpm?

Need a 12V resistor LED or a digital multimeter with a tone check. Connect the LED or meter as shown and a paper clip or other jumper and turn key ON. Start counting flashes. A code 12 (flash, pause, flash, flash, longer pause) is normal. The flashes repeat 4 times for each code, then goes to the next code if there is one.

 

[Ignatios]

Unsure but could be a MEFI-1 or 2, in any case trouble shooting will be the same.

Is there 12V at the coil with key ON?
When cranking can you see the Tachometer show at least 300 rpm?

Need a 12V resistor LED or a digital multimeter with a tone check. Connect the LED or meter as shown and a paper clip or other jumper and turn key ON. Start counting flashes. A code 12 (flash, pause, flash, flash, longer pause) is normal. The flashes repeat 4 times for each code, then goes to the next code if there is one.

Thank you the boat is at the marina I will try this next time I go to it and I will let you know.

 

[alldodge]

Just noticed a forgot the pic

 

[QBhoy]

Try another battery. Honestly.