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Old 09-07-2001, 05:14 AM
public enemy
Posts: n/a
Engine diagnostics 300E, lambda adjustment

I am trying to adjust the on/off ratio on my 88 300E. Iwas using a dwell meter as other people have done. I connected the positive side of the dwell meter on pin#3 of the diagnostic connector on the driver's side fender, and the negative side to a good chassis ground. According to the manual I should be getting between 21-27 degrees for a 35% to 45% duty cycle. I get nothing, no indication at all! The needle on my dweel meter does not move at all. Am I missing something here?
Thanks for any help.

Last edited by public enemy; 09-07-2001 at 01:14 PM.
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