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E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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  #1  
Old 04-09-2014, 11:25 AM
carsomon carsomon is offline
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Location: columbus ohio
 
Join Date: Mar 2014
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Mein Auto: 325ci
only 2 cylinders firing

hi I have a 1995 318is with the 4 cylinder in it and it is only running on 2 cylinders It has great compression and fuel delivery, also it has brand new NGK plugs/wires, and a new coil could the computer be out? also around the same time the right tail light stopped working and the bulbs are great. what are your thoughts?
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  #2  
Old 04-09-2014, 03:30 PM
naniekso naniekso is offline
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Location: Laguna, SoCal
 
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Mein Auto: E36 M3 Dakar Yello II
take a voltmeter and check the resistance of the coil pack by touching the prongs to the 1 and 3 position. The measurement of ohms should be between 0.4-0.8? Someone remember?
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  #3  
Old 04-09-2014, 06:32 PM
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drivinfaster drivinfaster is offline
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Location: in the sticks you piney
 
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Mein Auto: rescued bmw's
you don't have the wires crossed, do you??



if they are positioned correctly, compression is good, and you are getting injector pulses on all of the injectors, i would verify the ignition is the culprit of the misfire by using an inline spark tester.

if no spark, then you should suspect the drivers for the coil(s) circuits not firing.


or you could just guess and throw a dme at it.....






df
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Old 04-14-2014, 11:40 AM
carsomon carsomon is offline
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Location: columbus ohio
 
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Mein Auto: 325ci
Well everything's on square coil is not fireing out of terminals 2 and 4 but coil is brand new
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  #5  
Old 04-14-2014, 12:02 PM
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hornhospital hornhospital is offline
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Location: In the Grumpy Chair
 
Join Date: Jan 2008
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Mein Auto: 1995 318is / 1993 325is
Either connections from the ECU to #2 and #4 coils, or the ECU itself.
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Ken Kanne, Silverhill, AL, E36 Forum Mod/Craigslist addict/Hoarder of all sorts of stuff
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1995 318is "Bebe"; 1993 325is "Elvira" 1985 635CSi "Katja" 1984 633CSi "Sylvia"
HAVE I HAD MY MEDS YET?

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Old 04-14-2014, 03:24 PM
dudewithahammer dudewithahammer is offline
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Location: Springfield MA
 
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Mein Auto: 325I 4dr
Hey before you throw a comp at it deff check the circuits them selfs and your inputs ie your ckp


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