Re: RPM pulse mod - Saab Performance Bulletin Board - Saabnet.com
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Re: RPM pulse mod
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Posted by Eric van Spelde [Email] (more from Eric van Spelde) on Fri, 16 Jan 2004 07:38:47 Share Post by Email
In Reply to: RPM pulse mod, Alex C., Fri, 16 Jan 2004 07:19:06
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Nah -I guess it was as simple as changing a resistor value. Comparing the LH box with another (dead) one I have, I'll be d*nmed to know what it is however.
The only thing I know is that the guy looked at the scope when it didn't start up, told me he had to change the LH to account for the difference in rpm signal, took the box out, returned in a couple of minutes and plugged it in, then the car started and died, he said "not enough", disappeared with the box again, came back in another couple of minutes and then the thing started and ran.

Seeing as you have LH 2.4.x, your best way out may be to go for a 1989-91 DI/APC unit and the LH controller out of the same car. This means, however, that you will need a speed signal from the speedo, so you will have to swap that with a 9000 one, too. And then your odo reading will be off...



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