L3900
- Thread starter DCantrell
- Start date
0606 - PCM Processor Fault. It basically means that the PCM/ECM (powertrain/engine control module) has detected an internal integrity fault in the PCM.
From the people at Kubota I spoke with. The Kubota engine codes match the automotive codes.
From the people at Kubota I spoke with. The Kubota engine codes match the automotive codes.
Awesome and thanks for the help. Got water in fuel and ended up having to change out both filter and tractor still wouldn't fire. Took some time but finally with just a shot of starting fluid it cranked back up. Had some help from a friend that works for Kubota but he didn't know off hand what the code stood for. He did say that disconnecting the battery should clear the code but I wanted to know what it was before I did that. Thanks again for the help.
My friend,, just a little word of caution ,,,NEVER NEVER NEVER shoot a Kubota engine with starting fluid,, Seems they don't like it much not like the old diesels,, this is from several dealers as well and some of the outstanding members in here
Yes, pay attention to what skeets said. That starting fluid causes an explosion the engine wasn't designed to take.
You may not notice anything, but then one day, maybe years latter, you're driving your tractor to the barn to park it and a big clunk and the engine quits. Tear it apart and the crankshaft is in two pieces. You'll never know for sure what caused the damage, but.....something did!!!!!
Be cautious. Solve the starting problem, don't try to over ride it with starting fluid.
You may not notice anything, but then one day, maybe years latter, you're driving your tractor to the barn to park it and a big clunk and the engine quits. Tear it apart and the crankshaft is in two pieces. You'll never know for sure what caused the damage, but.....something did!!!!!
Be cautious. Solve the starting problem, don't try to over ride it with starting fluid.
North Idaho Wolfman
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WOW, I thought Kubota trained there staff better!
I guess he could be a paper pusher for Kubota and wouldn't know any better!
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This has been a hard one for me to accept. Both my little orange tractors are cantankerous starting, even in the mild Phoenix winter (which even at that only lasted about a week this year, coinciding perfectly with Christmas and my vacation time). Anyway, my old tractors and MD trucks with diesels were often much more difficult in the AL winters, and a can of Ether was standard equipment (often for gas burners too). Light 'em off right now and get on with the day's work. And I remember when I was little helping a neighbor who ran a (highway) tractor business get is old Macks and Detroits running using ether. But the modern diesels, you either have to wait 'em out, or fix whatever is causing the hard start, or risk catastrophic damage. But sometimes I still get a voice in the back of my head telling me that just a little spritz would light it right up, but I keep shouting it back down...
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PO606 is an ECU memory error. Probably from a low battery condition from attempts to get it started. I would not be concerned with it. To my knowledge, PO606 will not cause any ill problems with the DPF or it's system. It would be good to have it cleared by use of Diagmaster (which is the kubota system for doing this stuff) next time you're in for servicing. It can be cleared from the panel if it's stuck in there but it should go away on it's own after a while...but the ECU will store it forever until it's clearerd.
Surprised it runs at all after shooting ether to it. Seen more than one with lifted heads, broken cranks, bent rods, and now....there is also the DPF to deal with. Rods bend even just a little tiny bit and the engine will still run, and run "good"...but some unburned fuel is getting into the DPF, which then turns into a frequent regeneration cycle, sooner or later it'll go into a level 4 DPF regen, which must be returned to the dealer to them to force a regen. If it goes into level 5, you get to replace the DPF. They will want to know why it was plugged, to prevent from having to do it twice. They find out the rods are bent and find out it was from ether. They send you a bill for about $10,000 to fix it correctly.
These DPF tractors are awesome, but they are nowhere near cheap to fix if warranty can't assist with it.
The old diesels of yesteryear didn't have direct injection and automatic glow plugs, and many also had poor combustion chambers that needed help to get them running. That hasn't been the case since the 1980's with Kubota's and even those old ones would start/run fine down to about 20 degrees F so long as the glow system worked as designed-and was used properly.
Surprised it runs at all after shooting ether to it. Seen more than one with lifted heads, broken cranks, bent rods, and now....there is also the DPF to deal with. Rods bend even just a little tiny bit and the engine will still run, and run "good"...but some unburned fuel is getting into the DPF, which then turns into a frequent regeneration cycle, sooner or later it'll go into a level 4 DPF regen, which must be returned to the dealer to them to force a regen. If it goes into level 5, you get to replace the DPF. They will want to know why it was plugged, to prevent from having to do it twice. They find out the rods are bent and find out it was from ether. They send you a bill for about $10,000 to fix it correctly.
These DPF tractors are awesome, but they are nowhere near cheap to fix if warranty can't assist with it.
The old diesels of yesteryear didn't have direct injection and automatic glow plugs, and many also had poor combustion chambers that needed help to get them running. That hasn't been the case since the 1980's with Kubota's and even those old ones would start/run fine down to about 20 degrees F so long as the glow system worked as designed-and was used properly.
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