Excellent suggestion, removed the connector from the IP and a left wire
just popped out of it!! I was able to secure the wire to the to the connector and I now alot better RPM! I have the dial set on 6 but my rpm is actually about 540, it's alot better from 480 I was getting before but is there something else that might affect it?

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1987 300D
2005 E320 CDI