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Hello all
So I am having a problem w my 2005 200hp OX66. I no longer can get above 4600 at WOT (used to be 5500) and my fuel consumption is even worse (now 17 gal/hr was 12 gal/hr).
I suspected a stuck injector. So they were sent into Brucato FIS. he cleaned and recal to spec (they were ALL flooding).
I also suspected O2 sensor, I removed and cleaned that. do this every spring anyway. The dog bone was caked with carbon, as usual, and there was wet oil in the tube.
I also replaced spark plugs as all were wet and BLACK. especially the top 2.
other maintenance/checks etc.
-clean VST and filter
-new thermostats
-new LP pumps
-new PCV valve
After all this, I took for a rip yesterday. SAME symptoms. after only 20 min of running the plugs were black and kinda wetish looking. again, especially the top 2.
I am really assuming my O2 sensor has failed. and needs to be replaced instead of cleaned.
What do you guys think? Sound like a failed O2?
BTW this outboard has never seen ethanol. ...not available in AK
THANKS!!!!
So I am having a problem w my 2005 200hp OX66. I no longer can get above 4600 at WOT (used to be 5500) and my fuel consumption is even worse (now 17 gal/hr was 12 gal/hr).
I suspected a stuck injector. So they were sent into Brucato FIS. he cleaned and recal to spec (they were ALL flooding).
I also suspected O2 sensor, I removed and cleaned that. do this every spring anyway. The dog bone was caked with carbon, as usual, and there was wet oil in the tube.
I also replaced spark plugs as all were wet and BLACK. especially the top 2.
other maintenance/checks etc.
-clean VST and filter
-new thermostats
-new LP pumps
-new PCV valve
After all this, I took for a rip yesterday. SAME symptoms. after only 20 min of running the plugs were black and kinda wetish looking. again, especially the top 2.
I am really assuming my O2 sensor has failed. and needs to be replaced instead of cleaned.
What do you guys think? Sound like a failed O2?
BTW this outboard has never seen ethanol. ...not available in AK
THANKS!!!!