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testing plug coil 97 e420

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Old May 9, 2007 | 08:39 PM
  #1  
Mac Shawn's Avatar
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Joined: May 2007
Posts: 3
Default testing plug coil 97 e420

does any body know what is the working range for this coils ? im trying to test one, my car is acting up it feel like im missing a cylinder , i can unplug one of the coils with no change
thanxs
 
Old May 9, 2007 | 08:50 PM
  #2  
Mac Shawn's Avatar
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Joined: May 2007
Posts: 3
Default RE: testing plug coil 97 e420

I got my codes read and some codes said cylinder 5&6 were miss fireing and fuel injector
 
Old May 11, 2007 | 02:59 PM
  #3  
irantehran's Avatar
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Joined: Apr 2007
Posts: 19
Default RE: testing plug coil 97 e420

for every foot long wire you need to have 5000 to 7000 ohm resistance,

check your dist cap for hairy crack also check your spark plug/ and the gap

if your plug is wet you have a leaky injector , check your compression also
 
Old May 30, 2007 | 06:54 PM
  #4  
Mac Shawn's Avatar
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Joined: May 2007
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Default RE: testing plug coil 97 e420

I was wondering if you had any idea what type of tranmission fluid E class takes
 
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