The image wouldn't download. The EZL on my '88 has two large round multi-pin connectors at the bottom and a small round connector near the top next to the nipple for the manifold vacuum signal line that I believe is for the crank position sensor, and no additional connectors for knock sensors.

It appears to conform to the block diagram in the Benzworld image, but not to the pin diagram image, which has provisions for knock sensor inputs.

The part number is 006 545 75 32

Duke