Evinrude E-NATION, for those dedicated to water, power, fishing and fun
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Mate
Posts: 2
Registered: ‎12-03-2017

No Spark while cranking..

Have a 2009 90hp Etec, that cranks over fine, but has no spark. Tested with spark tester. Tried disconnecting kill wire, no difference. CPS is good. No faults on diagnostic software, but motor sparks when performing static Spark test with the laptop. I'm assuming it's the emm, but would hate to replace it and still have a non running motor. Thoughts?
Admiral
Posts: 6,414
Registered: ‎07-14-2011

Re: No Spark while cranking..

 

Inspect and test the big blue capacitor and also monitor its voltage while cranking. 

 

In some cases the electric fuel pump may be corroded or frozen which may draw excessive current away from the ignition system.

 

Obtain a factory service manual and follow tests and procedures to the letter if you elect to do your own troubleshooting and servicing.

 

 

 


"There is never just one thing wrong with a boat";
                    -- Travis McGee, main character in a book series by John D. McDonald 


 



***************

The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.


Captain
Posts: 35
Registered: ‎08-20-2017

Re: No Spark while cranking..

Try unplugging the fuel pump and then injectors. Watch sys voltage after cranking, it should drop slowly indicating the capacitor isn't shorted. Read the diagnostic lights on the EMM too.
Mate
Posts: 2
Registered: ‎12-03-2017

Re: No Spark while cranking..

The mystery continues. Tried all the test in the service manual along with the diagnostic software, still no spark while cranking. Put another motor next to it that was running, swapped all ignition components, still no spark. Put everything back on running motor now to have no spark on it either.. at a loss.. could the wiring harness be shorted and frying Emms??
Mate
Posts: 1
Registered: a month ago

Re: No Spark while cranking..

Please check CPS (Crankshaft Position Sensor) connector or replace the sensor. It is situated on intake near flywheel

Admiral
Posts: 6,414
Registered: ‎07-14-2011

Re: No Spark while cranking..

 

 

Take note if the tachometer reads rpm while cranking the motor. If the tach needle does not move, that is a possible indication of a faulty crankshaft position sensor.

 

See your dealer as there were some faulty sensors a few years back on certain engines, but not on all of them.

 

 

 


"There is never just one thing wrong with a boat";
                    -- Travis McGee, main character in a book series by John D. McDonald 


 



***************

The factory recommends that a properly trained technician service your Johnson or Evinrude outboard motor. Should you elect to perform repairs yourself, use caution, common sense, and observe safety procedures in the vicinity of flammable liquids, around moving parts, near high-temperature components, and working with electrical or ignition systems.

The information offered here is only general in nature and should not be construed as complete factory approved procedures, techniques, or specifications. Always use the proper service manual for your motor, up-to-date service literature, the correct tools, and have an understanding of how to proceed with troubleshooting and repair methods. If you are unsure or uncomfortable with a procedure, a situation, or a technique, enlist the services of a factory trained technician.