Thread: Check engine light - on after key out!
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  #13  
Old 08-04-2015, 08:31 PM
BatteredBenz BatteredBenz is offline
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Quote:
Originally Posted by 97 SL320 View Post
A quick way to test the Ig SW theory is just to unplug it.
Great point! That indeed would most easily isolate the switch from the equation, ruling it in or out as a potential root cause of the weirdness.
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