My DI cassette's "burn-off" cycle doesn't work - advice please - Saab 9000 Bulletin Board - Saabnet.com
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My DI cassette's "burn-off" cycle doesn't work - advice please
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Posted by Smeter (more from Smeter) on Sat, 21 Jul 2001 12:51:03 Share Post by Email
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Well, my subject title pretty well sums it up. I have a 1993 Aero, and I do not get that buzzing noise after you turn the ignition off. So, to tackle the problem, I have tried the following two things:
1) put another known working DI cassette on my Aero. The "burn off" did not work with that one.
2) check the 2" round connector that leaves the aquarium and its wires then goes to the intake manifold to feed the injectors and the DI cassette. When I unscrewed the connector, everything looked clean. So, I just put it back together.

When I turn the car off and sit inside it, I can hear a relay clicking and then about 5-6 seconds later another clicking sound comes from the glove box area. Can I assume this is the system relay sending power to the cassette for its "burn off" cycle?

Further, I am looking at 90-92 wiring diagram for the DI/APC from the Townsend Import site. However, I think it may not be applicable seeing that my fuel and ignition management system is Trionic.

So, where does that leave me? Please, do tell.

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