I've had a GreaseCar WVO system installed on my 1991 350SD and although it runs extremely well, I have one final glitch to correct. Here's what happens:

I start the car and let it run until it is warm.
I change from Diesel (B20) over to WVO.
The car runs for a few seconds and shuts off. If I hit the accellerator up to about 3500 rpm's, it will just hickup and keep running, but if I simply let it idle, it will shut off. Then I can restart the car and after a very brief priming the car runs great on grease.

I have installed GreaseCar's auxiliary pump, it seems that I have good power to the system, and everything appears to be installed properly. It seems like the solenoid does not get enough power to open at regular engine operation - only at ignition does it get enough power to open fully.

................ finished this post entry a little later ..............

Okay, after some discussion (with my dad) I have perhaps determined that the power to my solenoids is at fault. At ignition startup, there is enough amperage to cause the solenoid to open, but during regular driving there is not enough amperage to open the solenoid. This seems to be why I cannot switch fuels while driving - the motor will shut down if I do. As it is now, I must find a place where I can stop to switch fuels. The motor will stop, then I can restart on WVO and everything runs beautifully. Also - when I shut down on WVO and leave the car for a little while, it will shut down again when I initially restart it. Again, I have to restart the car and then it will continue to run fine.

So the question is - where should the GreaseCar system solenoids be getting power? Right now I *think* my system is wired into the starter, but I could be wrong - I'll need to confirm it with my mechanic this week, but I heard him mention it when I spoke with him last week. If so, that could explain why it does not have enough amperage - the starter circuit does not get full power when then engine is operating - it only needs full power to start the car when cranking. Am I on the right track here?

Any recommendations?
Thanks!
P.S. I have posted this over at the GreaseCar forum, too, but nobody has responded - you guys here are a lot more helpful!

__________________
Autos:
1991 350SD 276,000 miles
2001 VW Beetle TDI 115,000 miles

Horns:
1955 Selmer Mark VI Alto (55,xxx)
1958 Selmer Mark VI Tenor (85,xxx)
1964 Selmer Mark VI Tenor (125,xxx)
1967 King Super-20 Tenor (430,xxx)
2002 Selmer Series III Soprano

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