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Join Date: Dec 1969
Location: Maine
Posts: 494
Garage
Post DME adjustment

OK so I've been reading about these adjustments and believe that leaning out my FI will correct my rich-running '84 944.

It is a Seattle Porsche but has a California brain, the kind with the steel plug over the adjustment hole. Before I do something stupid, like monkey around with the box without knowing what I'm doing (which is normal for me), can I access the screw?

Shaun-I believe you're from the San Diego area, correct? If you are and have a California car, didn't you make this adjustment before? How did you do it?

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-Dave-
1984 944
99 days and a wakeup.

Old 05-14-2001, 01:31 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #1 (permalink)
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Join Date: Dec 1969
Location: Maine
Posts: 494
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I saw your post and that's what gave me the idea. I'm just worried about opening the DME case and accidentially screwing up the electronics. I guess I'll ground myself, my screwdriver, and the case then be really careful.

Thanks!

------------------
-Dave-
1984 944
99 days and a wakeup.
Old 05-14-2001, 07:43 AM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #2 (permalink)
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Join Date: Dec 1969
Location: Maine
Posts: 494
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This is my logic. Correct me if I'm wrong.

To make an adjustment on the MAF for a rich condition, I'll need to add more spring tention to the air flow sensor. Since this is a large restrictioin to airflow (power) already, why not leave it alone and lean it out on the DME? If I can lean it out 3% without increasing the restrictive effect of the AFM, I can keep the power I have and bring the FI into proper running condition.

I know it sounds simplistic, but I don't see the drawbacks.

------------------
-Dave-
1984 944
99 days and a wakeup.

Old 05-14-2001, 10:35 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #3 (permalink)
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