Thread: 2001 VIRAGE TXI- running lean
07-02-2007, 06:44 AM #1
2001 VIRAGE TXI- running lean
My TXI started to miss and run funny, then the red light and check engine
message same on. I stopped and checked it over, removed the spark plugs and all 3 were white, very lean looking, the center plug had some
aluminum plasma stuck to it, so as a minimum we have some piston
damage. What would cause the lean condition ????
100 hours, no mods, never a problem before.
07-02-2007, 07:49 AM #2
Have you checked fuel pressure yet? Might be a bad pump.
Possible crank seals, creating an air leak leading to lean condition.
07-02-2007, 08:08 AM #3
Fuel pressure ,air temp, water temp,lube oil .Check that there is fuel pressure .Easy way to do it is to push start button momentarily with lanyard in .You can put your hand on fuel lines from pump to injectors you should feel them swell or harden .You may hear a buzzing sound for a few seconds then stop .If so you have fuel pressure .Next is the water temp .Make sure the exhaust is cool enough to rest your hand on .If it is too hot you have a water flow issue ..The other item that will bring a lean condition is a faulty air temp sensor .It is located under the aircleaner assy .You will see a black button where the base bracket is located against the filter top,as the X mount sits on the sensor .They sometimes destroy the button and cause it to give a wrong signal to computer causing lean out .These items can all be checked with an ohm meter .The water temp sender is on the exhaust manifold and should be checked as well .If the exhaust is relatively warm you may still be getting a wrong value to the computer hence a leaner mixture than needed .Also if your oil pump has failed or the cable has broken it will do the same as a lean out .The cables for the oil pump chaff inside and are dificult to see as being damaged .So you need to take them off to check them properly .Let us know what you find
07-02-2007, 08:07 PM #4
Here is what I checked so far:
1. air temp sensor: 1005 ohms
2. water temp sensor: 1009 ohms
3. tps: r-b: 7100ohms, g-b:1940-7440, g-r: 7850-2420
4. fuel pressure: crank over and bottom [in] line gets hard, also can hear
pump, will check pressure later.
5. thermostat: ok, opens at 145 f
6. oil pump: cable and movement looks ok, I filled the oil to the cap, put on 30 miles that day and the oil level is down so you can see air
in the tank, so it appears it was using oil.
7. I looked under the dash where the EMM is mounted an that plate there is oil, it is not 2 stroke oil, it is golden in color, sticky and about 90w.
What is it. It looks like it came out of the EMM. Are these oil filled?
Has anyone taken one apart?
07-03-2007, 09:02 AM #5
Smoke wagon .
Did the ski run rough then the light come on or did it come on after it started rough? .If you give the starter a quick stab does the engine check light still come on and say check engine?.What is the number on the tps .Was it changed to the latest one ?Tps cause major problems .The gel leaking is a concern .I will try and find out for you
Send me your number and we will go over some other things
GMT as well
07-03-2007, 09:31 AM #6
No gel in unit .Could it be oil that has been put onto the steering to stop the wear on the steering bushes (it is a problemon these ski's)and it has dripped onto emm from steering column ?
07-03-2007, 10:48 AM #7
The check engine light only came on for a few seconds when I
was riding it, it does not come on now.
Yes, the ski ran rough first, then the engine light came on.
The TPS is original, I'll check the # on it.
Last edited by SMOKEWAGON; 07-03-2007 at 10:51 AM.
07-03-2007, 12:06 PM #8
Ok this happened to me one time .The coilwire has a rolled connector on it and sometimes it will break away and you won't see it .If the coil pack doesn't get its signal it will splutter and put the light on .Make sure the connectionis good on all 3 coils
07-05-2007, 07:49 AM #9
Will look at the coil wires.
07-05-2007, 08:18 AM #10
Pull the injector connectors off too and make sure the wires havent come away from the contacts to the injectors
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