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Date: Thu, 8 Aug 2002 22:36:58 +0100
From: "Mark" <marknopsamunt199.fsnet.co.uk>
Subject: Re: SAAB 9000 (1989) misfiring when revs go over 3000 RPM


"Tim.." <the.dotfarmnopsamternetdot.com> wrote in message news:aiujm4$b7h$1nopsams.btinternet.com... > If this engine is one of the SDI ones (Saab Direct Igntion) change the > coil cassette. Sometimes these fail all together, but often they go > faulty and spike the supply with HT. The ECU's often can take this but > the AMM cant and the HT spike fries them after a while. Thanks Tim. I checked with my brother and he assures me that it is NOT fitted with the DI cartridge. I was wondering if it was possible to retrieve the fault codes stored in the ecu, but a search on some of the Saab websites reveals that his system is the LH 2.2 which has no provision for self diagnostics without expensive testers. So it looks like a Saab main garage job.

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