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Old 07-21-2008, 08:34 PM   #1
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Direct Ignition Cassette, how do I know it's faulty?

So recently my check engine light came on. When I ran a OBD-II diagnostic it came up with three codes. Two were P0300 and the last was a P0340. The 340 was for the camshaft position sensor. I checked out some other forums and FAQs and it turns out that the 340 code could indicate a problem with the DI cassette, which is apparently a common problem. So how do I know that is the problem? Any help is appreciated.
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Old 07-21-2008, 09:43 PM   #2
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Find a known good one and swap it out. That's pretty much the easiest if not the only way.
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Old 07-22-2008, 03:00 AM   #3
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Originally Posted by Curlymurt View Post
Find a known good one and swap it out. That's pretty much the easiest if not the only way.
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Old 07-22-2008, 05:09 AM   #4
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also with an OBDII reader or better yet, TechII, you might see some misfire codes.

I also have heard of people grounding it, and turning it upsside down and cranking so they can observe if all 4 coils spark correctly. that one sounds a little dangerous to me
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Old 07-22-2008, 07:10 AM   #5
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Ditto on the TechII, and unfortunately, double ditto on the known good one.

The visual check only tells you if there's spark being emitted but it can't tell you if the misfire is happening at higher RPM, which is one of the ways the DIC will first start to fail.

If you don't beat on the car, you can live with a failing DIC for a few weeks or months. If you engage in some spirited driving, then you better carry a spare and have a T25 (IIRC) Torx screwdriver handy. Mine failed at 1:30 a.m. on a major highway....
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Old 07-22-2008, 07:18 AM   #6
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sadly, this is a Saab owner thing.. you know you are a Saab driver when...

both your Saabs have a spare DI in the trunk yes, we do in each Saab
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Old 07-22-2008, 06:57 PM   #7
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Thanks for the replies. I had heard of grounding it and checking the sparks. Does anyone know good places to find a Trionic 5 DI cassette, most likely used?
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Old 07-23-2008, 04:00 AM   #8
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DI cassette

Any DI (T7) that has D - code on the label is faulty from the factory and SAAB (dealer) will replace free of charge regardless of mileage and model year. Any with E-code are replaced under warranty terms (i.e., not necessarily for free)
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Old 04-03-2013, 01:23 PM   #9
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It's an old thread, but I was wondering if this replacement of "D" labeled DICs is actually true? I have one failing DIC on my SAAB. It's revision D. Would the dealer replace it for free, although my car is out of warranty?
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Old 04-03-2013, 04:55 PM   #10
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It's an old thread, but I was wondering if this replacement of "D" labeled DICs is actually true? I have one failing DIC on my SAAB. It's revision D. Would the dealer replace it for free, although my car is out of warranty?

Look at the revision number. 3.7 and higher are OK. Before that were the bad ones.

Technically speaking, GM would still be liable to do recalls and warranty work on a car sold while they owned Saab. Whether the remaining dealers are still doing that, I can't tell you. Since it was a safety recall they'd be obligated to replace it even out of warranty as long as that car has never had one done.

Report Receipt Date: SEP 14, 2005
NHTSA Campaign Number: 05V399000
Component(s): ELECTRICAL SYSTEM
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