Quote:
Originally Posted by SD1too
My 75 is very early, built in May 1999, and there's no interlock either with the ignition switch or the brake pedal, so maybe I don't have the interlock ECU.  |
I'm sure the interlock has no bearing on the issue. I'm still not sure I have one - there's an ECU bolted to the bottom of the driver's side A pillar where they were fitted but I can't see what it is without removing it. I've no intention of doing so unless I have to!
Quote:
Originally Posted by SD1too
Wouldn't that also connect C0895-8 to C0239-1 (which you've already tried when the master switch is closed)?
|
Well would it any more than using the experimental supply? I mean, everything ultimately is powered from the same source in the end. I obviously understand there is an issue with powering directly from the feed i.e. C0749-5 but I don't know the cause of it (do you?). My reasoning for the relay idea was that if C0749-5 was used only to activate the coil, it's such a low current that it shouldn't give a problem. The power source to C0239-1 activated through the relay can come from any suitable fused source.
My reasoning though is based on incomplete knowledge of what's causing the problem, so I can't know if that's feasible.
A diode on the other hand is a one-way street and would provide the solution from the existing master switch. I guess I know which way I'm going.
I have used Schottky diodes successfully before on projects. Their power drop is lower than standard diodes and they have faster switching speeds.
Dougie.