Saab Repair Questions? Ask a Mechanic for Answers ASAP
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2003 Saab 9-3 2.0t
Hello Robert, Thank you for the info. Providing the coil is in fact good then the Combustion Ionization Module may be at fault. This is the module on the drivers side engine directly in front of the firewall. Also make sure to use original equipment spark plugs to avoid a false code being generated.
P1682-00 indicates a poor connection in the +15 accessory circuit. Most common problem is a corroded or poor connection in connector H42-2...which is located under the battery tray. Separate and clean contacts with contact cleaner and check for any pushed out pins. If I can assist further I will be happy to. Thank you, Jeffrey