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Merc 74 L MPI

seidh

New member
"I was out yesterday.
Started


"I was out yesterday.
Started and had it runing for about 20 miles with no problems (24-25 knots), then slowed down to idle speed for approx. 15 min and noticed a little change in the sound. I was intended to throtle up a little bit but it shut down before.
I was not able to start the engine again.
The engine cranked normaly but wouldn't fire up.
Checked gas (had enough), checked fuel pump (working), removed and emptied water sep. filter, unplugged and plugged engine harness, spark plug's cables, kill switch...
Didn't help, had to be towed in.
I assume it is something with EFI.
Any thoughts and opinion on this greatly appreciated.
Thanks, Seid"
 
"I didn't have any spark,

"I didn't have any spark, so I guess it was a coil.
Distributor looked corroded, so I'll probably have it replaced too.
Do you suggest I replace spark plugs and wires this time, as well?
Thx,
Seid"
 
Work on the corrosion issue fi

Work on the corrosion issue first; that may just be the problem. Check the plugs; replace if needed.
 
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