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Old 08-23-2013, 08:11 PM
97 SL320 97 SL320 is offline
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Join Date: Jan 2012
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Quote:
Originally Posted by colincoon View Post
I am testing the plug on the coil that the distributor cap plugs in to. This is a very early m104, with CIS-E like the M103. I'm not sure I follow where I would find three coils.
This has the same system as my 91 300SL. One ignition coil behind the left headlight area and a distributor cap on one of the cams.

Quote:
Originally Posted by colincoon View Post
The car stalled a few times at red lights but would restart. Finally it stalled and hasn't restarted.

Recently we replaced the spark plugs and O2 sensor, but that doesn't seem relevant
None of these would cause the problem you have.
Quote:
Originally Posted by colincoon View Post
We are not getting any power to the plug wires at all. This was tested by grounding a plug and by using a multimeter.
Don't bother looking at the spark plug end of things yet, use the ignition wire from the coil to test for spark. ( the one that runs from the coil to distributor. ) Use a spark gap and don't hold onto any metal.

DO NOT USE A MULTI METER TO CHECK FOR SPARK WHILE CRANKING AT MINIMUM YOU WILL DAMAGE THE METER. THERE IS ALSO A RISK SEVERE INJURY / DEATH.

You can use the ohms function to check for a broken coil wire when both ends are removed and away from the car.

Quote:
Originally Posted by colincoon View Post
Today we replaced the distributor cap with no luck.
I{f you are not getting spark from the coil , everything past that isn't important at this time.
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