Erratic Alarm not starting 2017 60HP 4 Stroke EFI

JRMac1

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I hate to rattle on about the battery. But honestly it can throw so many people off the battery, these modern engines. Unless it’s tip top…it can sometimes just not fire them up. Despite cranking over healthy enough sounding. If the battery is weakened in any way…whilst it’s cranking…the ecu and ignition components can be neglected of enough current and voltage ti even try and fire up…just with all the load going to the starter. Very common these days on new engines. It’s thrown me a few times too. Couldn’t understand why it could be the battery if it turns over like a bat out of hell. But it’s 100% true. Had it happen on my mpi mercruiser a few times and also on my modern 2016 merc 115. Spins over as well as you like. Won’t fire. Change the battery…all is well.
You may be right. The battery is 4 years old. But it doesn't have any issues cranking. I'll run a load test this afternoon. I ran one last year and it was fine. But you just never know. I'm willing to check anything right now.
 

QBhoy

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You may be right. The battery is 4 years old. But it doesn't have any issues cranking. I'll run a load test this afternoon. I ran one last year and it was fine. But you just never know. I'm willing to check anything right now.
Yeah. Defo worth a try. That’s extenuating I was saying. Can really throw you off blaming the battery, because it can still crank healthy. But with these new things…the cranking can take enough juice away from everything else so that it then won’t even try to fire up. It thinks there isn’t enough power detected to try. Very common with new engines.
 

JRMac1

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Well, that didn't work. The load test was a bust. The drop was only down to 11v and it jumped right back up after it started. For it to be bad it should drop to 9.6-10v or lower. Anyway thanks for the info.
 

QBhoy

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Well, that didn't work. The load test was a bust. The drop was only down to 11v and it jumped right back up after it started. For it to be bad it should drop to 9.6-10v or lower. Anyway thanks for the info.
I’m not sure that would totally rule it out for me to be honest. Be worth trying another battery still. What is the voltage showing when the battery is at rest and nothing drawing from it ?
 

JRMac1

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I have a couple other questions, I noticed there is a solenoid/vacuum switch on the starboard side of the engine just below the injectors. It has two ports on it one is open and the other has a hose from the air box. The open one is sucking air when the engine runs. I've always been taught the vacuum leak bad, but what do I know??? Second, the low pressure fuel filter is almost completely empty when it's running... I never paid attention to it, but is that right?
 

JRMac1

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I’m not sure that would totally rule it out for me to be honest. Be worth trying another battery still. What is the voltage showing when the battery is at rest and nothing drawing from it ?
The battery reads 12.78v
 

QBhoy

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The battery reads 12.78v
Is that just after it’s been running or what it would be after leaving it for a day or two ? What cca is the battery rated to ? Sorry to go on. Just trying to help and know for sure this can cause what you have.
 

QBhoy

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I have a couple other questions, I noticed there is a solenoid/vacuum switch on the starboard side of the engine just below the injectors. It has two ports on it one is open and the other has a hose from the air box. The open one is sucking air when the engine runs. I've always been taught the vacuum leak bad, but what do I know??? Second, the low pressure fuel filter is almost completely empty when it's running... I never paid attention to it, but is that right?
Do you have a water separator filter ?
 

JRMac1

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that's what it was before I started so it was after about a week. Not sure what the cca are I'll post later I just put the boat away. It's the standard battery for the boat.
 

JRMac1

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Well, I believe that I have found the problem!!! I was looking at the troubleshooting chart and realized that intermittent beeps indicates a possible fuel pump issue. So, while I was running it yesterday I noticed that the low pressure filter bowl didn't stay full. In fact it went down to about an eighth of an inch. So, when I stop and fish in the hot sun the fuel in the vapor separator tank where the High pressure fuel pump is vaporizing. there isn't any fuel it the system. I get the beep and it won't start. Plus when I pump it up with the primer bulb the HP side of the fuel system is air bound and needs to bleed off. Anyone that has had to bleed off injectors knows that it is a PITA. These need to "self bleed" so it takes a while.
It all makes sense to me, I'm ordering the low pressure fuel pump and I'll find out.
 

JRMac1

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Well, I believe that I have found the problem!!! I was looking at the troubleshooting chart and realized that intermittent beeps indicates a possible fuel pump issue. So, while I was running it yesterday I noticed that the low pressure filter bowl didn't stay full. In fact it went down to about an eighth of an inch. So, when I stop and fish in the hot sun the fuel in the vapor separator tank where the High pressure fuel pump is, is vaporizing so there isn't any fuel it the system. I get the beep and it won't start. Plus when I pump it up with the primer bulb the HP side of the fuel system is already air bound and needs to bleed off. Anyone that has had to bleed off injectors knows that it is a PITA. These need to "self bleed" so it takes a while.
It all makes sense to me, I'm ordering the low pressure fuel pump and I'll find out.
 

brisboats

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I am having the same issue with my 2019 50 efi and just today ordered a new coolant temp sensor as I believe there is slight white smoke coming from my exhaust. I have replaced spark plugs, changed oil, thermostat, new impeller, fuel filter, high pressure pump. All this year.
Motor ran fine all last year over 100 hours logged . My problems started this Spring as there was crap in my VST and took out the pump. Took motor out for first time and got a continuous alarm while running. Guardian mode kicked in but not a big drop in power like a low oil pressure or over rev code so thought it may have likely been an overheat so did the therm and impeller. Since then the second beep is always present on startup. I use my motor for crabbing and haven't had much time to chase this until now. Actually switched out boats and started throwing parts at the motor. Finally , I ran the motor for 8 hours over the weekend and aside from the light puffs of white smoke it seemed fine. There is no water in my oil. My motor always starts immediately it is just that once started I get that 5-7 second beep it goes away and no beep or beeps all the while the motor is running all day. Annoying because I want it perfect.
I have also switched out batteries. Backflushed the motor and noticed that while on the hose no white exhaust. Going to pull the plugs and compression test this week. Running out of ideas but will go over my wiring as the current drop makes sense to me.
Curious what they charged you to do the CDS scan that just maybe my last resort, taking it to the dealer.
I also have an older 2009 60 efi that is on another boat that has been flawless.
B

Just saw you may have a solution next time I run will be watching the fuel filter bowl.. that makes sense too as my problems started this year in the fuel system but my motor starts instantly...just throw out that second beep.
 
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JRMac1

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The dealer charged me $67, but it took about 2 weeks to wait. I didn't have any codes on mine so if you find out what is wrong please post here. Thanks. I was going to change the low pressure fuel pump but I checked it w/a vacuum pump and it seemed fine. I changed out the entire low pressure fuel filter assembly. It still gives me the beep and a difficult time starting. I let it idle for a few minutes when I get where I'm going and make sure I squeeze the primer bulb after I shut it off and before I start it. It seems to work better but still not right. Please post with any solutions, this thing is driving me crazy!!! Thanks
 

brisboats

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I have a couple other questions, I noticed there is a solenoid/vacuum switch on the starboard side of the engine just below the injectors. It has two ports on it one is open and the other has a hose from the air box. The open one is sucking air when the engine runs. I've always been taught the vacuum leak bad, but what do I know??? Second, the low pressure fuel filter is almost completely empty when it's running... I never paid attention to it, but is that right?
 

brisboats

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The solenoid you are referring to is the IAC idle air control the lower port is open but can suck in dirt and take it out. Creating poor idle quality erractic or no idle.. If bad you would get three beeps every four minutes .
 

brisboats

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The dealer charged me $67, but it took about 2 weeks to wait. I didn't have any codes on mine so if you find out what is wrong please post here. Thanks. I was going to change the low pressure fuel pump but I checked it w/a vacuum pump and it seemed fine. I changed out the entire low pressure fuel filter assembly. It still gives me the beep and a difficult time starting. I let it idle for a few minutes when I get where I'm going and make sure I squeeze the primer bulb after I shut it off and before I start it. It seems to work better but still not right. Please post with any solutions, this thing is driving me crazy!!! Thanks
 

brisboats

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Thanks , I have the factory manual. Just found something that may help, says if you suspect air in the fuel system to crank and start engine several times. Guess that may bleed it out with the high pressure pump pushing the air through the injectors.
Says voltage drop to 6 volts will not fire the ECM so would need that to get to no start.
Hope that helps!
$67 is reasonable.. I just wish I had the CDS I have trust issues with dealers, lol.
 

JRMac1

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Their scanner is about $500, I didn't want to pay for one issue. That sounds interesting about the fuel issue. I knew that was probably an issue but still not sure why it's doing it. The voltage isn't dropping to 6v. it's only dropping to about 10.5 on my multimeter. So, it seems for some reason not enough fuel is getting to the VST and the hi pressure pump... I agree with the trust issues. But they were ok.
 
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