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Old 01-09-2002, 02:24 AM
Join Date: Jun 1999
Location: Melbourne , Australia
Posts: 33
Correct way to adjust 1988 190E 2.3 Mixture ?

I have just finished a top-end rebuild on my 190E and was wondering what is the best way to adjust the idle mixture.

Should I set the EHA current to 0MA (or -3ma slightly rich) closed loop.
Or should I adjust the % duty cycle at pin 3 of the diagnostic socket with my Fluke Multimeter ?

At the moment I have it set to -3ma EHA which gives about 40% duty cycle and it seems to be running very well.


Doug McCutchan

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Old 01-09-2002, 08:35 AM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
IF the control pressure (upper/lower chamber) is correct, then either method is correct.

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