300CE I bought from a friend had no spark. Turned out somehow the wire to the crank position sensor on the rear had been cut. Replaced the sensor (at considerable effort) and now I have spark. But it looks really quite weak if I set a plug on the valve cover and crank the engine over.

A spritz of ether into the throttle body will not kick the engine over.

I hear the fuel pump running but I wanted to see if it was a lack of fuel issue, it apparently is not.

The plugs don't look worn, but they were fairly black, I know several people tried to get this car running for him so I don't know all of the cranking fouled the plugs out. I ordered a set of non-resistor plugs for it.

I have 2 EZLs (yes the hard to find ones specific to this car) and both allow the engine to spark, but weak, and the car won't hit on starting fluid or whatever the fuel distributor is, or isn't doing.

Pull the valve cover and with the cams at the timing marks, #1 is at TDC. So valve timing is in the neighborhood of being right, chain is nice and tight so I don't suspect anything as jumped and the engine turns freely, I just wanted to verify.

Anyone had a weak spark experience on an M103 or an M104.980? This is the 90-92 M104 so while its an M104, it uses a distributor and a single coil like an M103, not the semi-coil-on-plug setup of the later HFM M104s.

My next step was to borrow a coil from a friends M103.

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