Question about 1992 Audi 100
If you can physically see there's no spark at the sparkplugs then you need to check the HT leads(spark plug leads), resistance should be no more than 14 Kilo Ohms per foot of cable! If they're ok check the coil pack for signs of arcing to earth(very common in these cars!) and if they are getting a 12 Volt supply from the ignition, if ok then check the amplifier which is screwed to the top of the air filter housing to see whether voltage is getting through from there, if ok check the crankshaft position sensor! (Also a common fault on these) Has your vehicle got an immobilizer? These when activated, disable the engine control unit and stop the signals from getting to your ignition amplifier module!
Posted on Oct 09, 2010
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Posted on Jan 02, 2017
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