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2005EETEC75

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Reply with quote  #1 
I have a 2005 Evinrude 75 hp e-tec  E75DPLSOR that starts up fine but when the throttle is opened to 1750 rpm it surges and will not increase rpm. The diagnostic software shows everything in the normal range. the injector static test is OK the oil lines were purged high fuel pressure is 20 lb the low pressure is 3 lb, the vapor separator  filter was checked and cleaned. Spark plugs were cleaned and indexed.  The warning lights indicate no problem nor does the EMM lights.Can anyone advise me as to what I may be missing in remeding this problem?

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PhilH12

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Reply with quote  #2 
Welcome!  It says it's in Neutral, and that May be what's helping to keep you from exploding your engine and chasing around the neighborhood to find all the parts..  Higher RPM's are ONLY for "in the water and in Gear".

The EMM itself controls how high you can go in Neutral, and then starts limiting things to try to protect you from yourself.  [wink]

Hope it helps!

Phil

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20' Weeres fishing pontoon
90 HP E-Tec E90DPLSUM  05184332
Lake Tawakoni, TX - Catfish Capital of Texas
seahorse

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Reply with quote  #3 

If the motor is started with the throttle open, even slightly, the motor will not accelerate either.  When that happens you may see numerous code 11 errors in the engine report.

 

 


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2005EETEC75

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Reply with quote  #4 
checked the linkage and it is correct   also checked the neutral switch it's ok 
Also if I am running the engine with muffs and in gear shouldn't I be able to rev the engine higher than 1800 rpm
Oldguy

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Reply with quote  #5 
By your own screen shot of EV Diag. At  the top it indicates shift is in neutral
bunkergroup

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Reply with quote  #6 
Yes... Did the motor loose rpm out on the water and then not rev over 1750 ? or put in the water and wouldn't rev over 1750. ?.
PhilH12

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Reply with quote  #7 
Quote:
Originally Posted by 2005EETEC75
checked the linkage and it is correct   also checked the neutral switch it's ok 
Also if I am running the engine with muffs and in gear shouldn't I be able to rev the engine higher than 1800 rpm


If you are running on muffs and trying to exceed 1,800 - you are asking for way more trouble than you bargained for.  [nono]  You might get away with it, but then again you might not.

If you have any sort of "warm-up" lever, make sure it is Not raised when starting - that's the 'partial throttle' thing mentioned above.

Suggest putting it in the water, throttle at minimum, starting it, and then see what it'll do around the ramp.  ie, don't go too far away until you know it's good.

Phil

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Always check the Easy Stuff First!
20' Weeres fishing pontoon
90 HP E-Tec E90DPLSUM  05184332
Lake Tawakoni, TX - Catfish Capital of Texas
2005EETEC75

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Posts: 5
Reply with quote  #8 
Thanks for everyone's input. Since this is my first computerized outboard motor I did not realize that high rpm was limited while in neutral.
I just cranked it up put it in gear and it sounded   fine. I obviously got the wrong details from the previous owner about the issue.
PhilH12

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Reply with quote  #9 
No problem!  No rev'ing when out of the water, whether in Neutral or not - but surely keep that to a strict Minimum!  That's inviting the "neighborhood parts search".

Let us know how it does when she's all wet.  [thumb]

Phil

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Always check the Easy Stuff First!
20' Weeres fishing pontoon
90 HP E-Tec E90DPLSUM  05184332
Lake Tawakoni, TX - Catfish Capital of Texas
slightlee

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Reply with quote  #10 
Hi
Do you get an audible alarm at any point?

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2004 etec 75hp e75dplsrc  05059699
2005EETEC75

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Reply with quote  #11 
Problem solved    I did not know that the RPM was limited  when  the motor is not in gear
 there is no warnings for this situation
slightlee

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Reply with quote  #12 

Ive got the same motor as you.....mine has just finished the run in hours!!! getting on for 1000hrs now!!! 
Take no notice of the system volts...a little problem i had..
[thumb]

screeeeen.png 


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2004 etec 75hp e75dplsrc  05059699
2005EETEC75

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Reply with quote  #13 
WOW  Is that like getting 300,000 miles on a car?  I noticed that your diagnostic shows 0 missed oil pulses   mine said 122  what does missed pulses mean?
rickmcd53

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Reply with quote  #14 
Every time the EMM sends a pulse signal to the oil pump it expects to see a pulse signal return from the oil pressure switch. If enough pulses are "missed" in a certain amount of time, like 50 out of 100 missed then the engine generates a no oil warning.
Missed pulses are usually caused by air bubbles in the oil for various reasons. Your 122 missed pulses could have been accumulated over a long time, or when the oil system was first set up and bled.
That number is useful for diagnosing a problem at a certain point in time but not a meaningful number over a long period of time. I think the counter tops out at 255 then rolls back to zero.
Just as a note,, the number of 255 or 256 is seen in a lot of computer applications because it is the largest number that can be counted in 8 bit computer systems.
slightlee

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Reply with quote  #15 
Blimey! There you go!... Of course, I was going to give you the same answer!.. 😜👍
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2004 etec 75hp e75dplsrc  05059699
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