Clogged fuel filter?

 

I had a problem with a clogged fuel filter last summer. At that time I cleaned it without replacing. I just checked my local deal and a replacement is $57 and they have to order it. I will probably just clean it again to see if that is it. Do you recommend replacing it at that price?

 

Its got to be fuel or fuel related....maybe run some seafoam through it or check for loose or pinched lines. Im sure someone here will know for sure though

 

When it started to die it seemed as though I was running on one cylinder for a few seconds.

There have been noted instances of the power wires running to the injectors corroding through, causing intermitten and then total loss of a cylinder.

Apparently there is a bundle of wires that's all taped up, but is not completely sealed from the elements. Water can get in there and work at the connections. I'd check that I was getting 12v to both injectors. I'd also check it with a test light, and not a volt meter, as often a corroded connection will show 12v but not be able to pass enough amperage to be of any use.

0.02$

 

Sounds like a FI problem.

Check fuel filter. You should be able to easily blow through it.

Check for injector pulse: Go to Harbor Freight or your local discount automotive store and get a "node light" tester. You will have to look at the plug on your Strom and find a node light that is close. Then you plug the node light into the wiring connector off the injector and crank the engine. If the computer is working the light will flash. If no flash, check wiring.

If wiring is OK you could have lost the crankshaft sensor that tells the computer when to inject. Since your spark is working OK I would doubt that the crank sensor is at fault.

Since you don't have a trouble code I would first work on the fuel supply, that is pump, lines, and filter.

Good luck,

Hans

 

Also, check out the fuel pump. Nobody has mentioned it yet. Does it hum like mine? It sure as the clog in the filter got worse the hum would increase or even sound broken up like the one on my truck did before it gave up the ghost.

 

She runs again! Case Closed.

Thanks for all the advice. I took apart the fuel pump to check the filter. When I was taking the pump out of the tank I noticed that the fuel pressure regulator was loose. Probably a poor assembly job by myself in the dark the last time I cleaned the fuel filter. I cleaned the fuel filter, but it wasn't very dirty to begin with. I oiled all the rings and put everything back together. Now she runs again! Thanks again for all the input.

 

Its Back!

Well, yesterday I suited up for a ride and now the problem is back. The same behavior as before. I had not actually ridden the bike since it was running again. I had started it and let it run to normal operating temp two or three times and it started no problem. Does anyone think the fuel pressure regulator could have popped out again? When the bike did start earlier yesterday it was with the tank still lifted. Do you think it could have a pinched line somewhere? I am starting to run out of ideas. I am thinking of buying a fuel pressure gauge today.

 

Wow - cool puzzle - I love these things. You need gas, spark, and exhaust to run - and of course there are several components for each.

Exhaust: Given that it failed rapidly, it's not exhaust.

Spark - You also have spark and the C00 code says the coils are getting their control signals so that's not it.

Fuel: Code C00 makes it interesting since it covers almost everything EXCEPT is the fuel flowing (fuel pump and filter). Checking the fuel filter is easy so you might as well do it. However fuel filters don't typically clog instantly while running - they usually give you a warning - works under low rpm (note - this does not include idle) but won't support high rpms. You didn't get C41 so both the fuel pump control and the fuel pump relay apparently work but it doesn't say that the fuel pump is actually working. Testing the fuel pump is relatively easy - turn the key on and you'll hear it pressurize - if this goes on for more than a second then you have problems - if you don't hear it at all then you definitely have a problem. This isn't a conclusive test but it's close.
If it's the fuel pump there are other things to test before you buy a new one but I'll defer on that one for now. It's unlikely that both injectors failed at the same time and the code indicates that the injectors are getting their control signals. However I can't tell from the '04 schematic whether this is sensed at the injector or somewhere along that wire - so you should check that as per an earlier reply.

Sorry for the verbose reply - somehow this is more interesting than work at the moment - go figure.