Bentley manual...just kidding - Saab 900 Bulletin Board - Saabnet.com
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Bentley manual...just kidding
Posted by JohnK (more from JohnK) on Thu, 4 Oct 2001 13:39:59
In Reply to: 1992 900 No Spark, Russ, Thu, 4 Oct 2001 12:44:06
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First check if your tach bounces when you crank the engine, if so your ignition system is sending a signal to the ECU. If not, you have a problem in the ignition and you should check your ignition module on left side inner fender, EZK(if non turbo),and your distributor hall effect sender(get a manual). If the tach bounces ignition is OK but you still might not have spark. Pull coil wire to see if you have spark to ground when cranking(you probably will). Then do the same with a sparkplug wire, if none, replace dist rotor and maybe cap(bad rotor is common and easy to fix). Then check your plugs for condition and gap.
Now you're into the injection system troubleshoot. First jump fuses #27(should be id'd as fuel pump relay) to #30 to see if your fuel pump runs with engine off. If not, you at least need a new fuel pump. Was fuel pump noisy prior to no start? If fuel pump runs, you need to a digital voltmeter to check out your AMM, fuel pump relay, main relay, and ECU. Get a manual and have fun.
posted by 216.75....
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