Hey guys;
I understand all the negative attention this motor gets but, I have had this motor since new and put 390 hrs on it. The engine has always been in fresh water without a major problem. I have done the normal maintenance on it like fogging, spark plugs, carb cleaner and last season replaced the starter. This has up to now been a great motor.
The other day while returning from a day on the lake, I was cruising along at about 3000 RPM when the engine just quit. It appeared to just bog down. I could not restart it. No warning lights or any other indications.
I have been troubleshooting the wiring for the past week as per the shop manual and have utilized the software and cable to download the latest info from the ECM. There were no Hard Codes set.
I have checked fuel, battery and the wiring from the ignition to the engine, including the Neutral switch and Kill Switch. The part of the troubleshooting that fails is I get no spark. The plugs get wet so the injectors are active but no spark.
I have noticed that the ECM will only read approx 180 RPM when cranking, the book calls for 200 RPM to initiate spark to the coils. However the motor is being cranked with a fresh 1000 CCA battery. It appears as strong at turning over the engine as always. Plus I tend to think this is not the issue as the problem of the engine quitting occurred at 3000 RPM. I have checked the resistance and air gap on the CPS, all appear within spec.
All voltage, ground and resistance checks from the fwd controls back to the engine and up to the Rectifier/Regulator look good. When I check for spark at the coils, there is none on any of them. I have tested the coils as per the manual and they test properly for resistance, the Stator and the Rectifier/Regulator all test good for ground and resistance.
So I believe I have narrowed down the problem according to the manual to the Ignition Module. I have also confirmed I have 12 volts going from the Power Fuse/Relay Panel to the Ignition module.
I am looking at sending both the ECM and Ignition Module to DFI, just wanted to ask the question first.
Have I missed something that would prevent the three individual Coils from receiving any spark?
I have included the ECM readout below. Thanks for any assistance you can provide.
Engine Model No J150ILECR
Engine Serial No 4460429
Hard Service Codes None
Intermittent Codes None
ECU Serial 8818
Software Version 3030019
Software PCN 99038
Engine Hours 391
Break-in Hours 5
ECU On Time 0:3
Air Temp 22 C
Engine Temp 25 C
ECU Temp 23 C
TPS Calibrated 0%
TPS Actual 0.27 V
In S.L.O.W. No
Overheat No
Oil Pressure No
Shift Interrupter No
Water In Fuel No
Engine Speed 0
Ignition Timing 0 BTDC
Spark Duration 2.0 ms
Fuel Timing 60 BTDC
Fuel Pulse Width 20.00 ms
Baro Pressure 27.84 in. HG
Exhaust Pressure N/A
Battery 12.73
PDS Voltage 11.60
ECM: P/N 586237, S/N 00008818, Prg Ver 3030014, Prg Rev 87850, 01-13-1998
Ignition Module: P/N 586381, S/N 00014034
Spark Plugs: Champion Copper Marine 7712
Dave
Cold Lake, Alberta
Canada
I understand all the negative attention this motor gets but, I have had this motor since new and put 390 hrs on it. The engine has always been in fresh water without a major problem. I have done the normal maintenance on it like fogging, spark plugs, carb cleaner and last season replaced the starter. This has up to now been a great motor.
The other day while returning from a day on the lake, I was cruising along at about 3000 RPM when the engine just quit. It appeared to just bog down. I could not restart it. No warning lights or any other indications.
I have been troubleshooting the wiring for the past week as per the shop manual and have utilized the software and cable to download the latest info from the ECM. There were no Hard Codes set.
I have checked fuel, battery and the wiring from the ignition to the engine, including the Neutral switch and Kill Switch. The part of the troubleshooting that fails is I get no spark. The plugs get wet so the injectors are active but no spark.
I have noticed that the ECM will only read approx 180 RPM when cranking, the book calls for 200 RPM to initiate spark to the coils. However the motor is being cranked with a fresh 1000 CCA battery. It appears as strong at turning over the engine as always. Plus I tend to think this is not the issue as the problem of the engine quitting occurred at 3000 RPM. I have checked the resistance and air gap on the CPS, all appear within spec.
All voltage, ground and resistance checks from the fwd controls back to the engine and up to the Rectifier/Regulator look good. When I check for spark at the coils, there is none on any of them. I have tested the coils as per the manual and they test properly for resistance, the Stator and the Rectifier/Regulator all test good for ground and resistance.
So I believe I have narrowed down the problem according to the manual to the Ignition Module. I have also confirmed I have 12 volts going from the Power Fuse/Relay Panel to the Ignition module.
I am looking at sending both the ECM and Ignition Module to DFI, just wanted to ask the question first.
Have I missed something that would prevent the three individual Coils from receiving any spark?
I have included the ECM readout below. Thanks for any assistance you can provide.
Engine Model No J150ILECR
Engine Serial No 4460429
Hard Service Codes None
Intermittent Codes None
ECU Serial 8818
Software Version 3030019
Software PCN 99038
Engine Hours 391
Break-in Hours 5
ECU On Time 0:3
Air Temp 22 C
Engine Temp 25 C
ECU Temp 23 C
TPS Calibrated 0%
TPS Actual 0.27 V
In S.L.O.W. No
Overheat No
Oil Pressure No
Shift Interrupter No
Water In Fuel No
Engine Speed 0
Ignition Timing 0 BTDC
Spark Duration 2.0 ms
Fuel Timing 60 BTDC
Fuel Pulse Width 20.00 ms
Baro Pressure 27.84 in. HG
Exhaust Pressure N/A
Battery 12.73
PDS Voltage 11.60
ECM: P/N 586237, S/N 00008818, Prg Ver 3030014, Prg Rev 87850, 01-13-1998
Ignition Module: P/N 586381, S/N 00014034
Spark Plugs: Champion Copper Marine 7712
Dave
Cold Lake, Alberta
Canada
