Thanks Doug,
The problem is that is happens with the OD off. I can't remember it
happening with it on, but then I don't use it a whole lot around town. I
did check the engine ground and it is in good shape. I had a loose battery
to body ground and fixed it yesterday but haven't had the car out since.
Unfortunately, it happens very infrequently, maybe 1 out of 10 drives. I
checked the wires and they are correct. The system works as advertised with
the switch working the solonoid if in 3 and 4, and it drops out with the
switch on if I shift to the left side (first and second gear). The freaky
thing is that after I restart the engine with the wire off, I can reattach
and it will run fine - until the next time the engine dies.
Pete
-----Original Message-----
From: spitfires-owner@autox.team.net
[mailto:spitfires-owner@autox.team.net]On Behalf Of doug@dougbraun.com
Sent: Monday, March 14, 2005 2:42 PM
To: Peter Ryner
Cc: spitfires@autox.team.net
Subject: RE: strange OD problem
If you had a high-resistance connection between the chassis and the engine
block, it might be able
to carry the ground current of the ignition circuit, but not the additional
current of the OD
circuit (which is grounded through the tranny/engine assembly).
If this is the cause of the problem, you would see the voltage between the
engine block and chassis rise well above
zero when the OD was switched on. This would be true no matter where the
OD supply voltage was supplied from.
Doug
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