Afm factory adjustment

Gotta love that wiring . . .
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carlospena96
Posts: 62
Joined: Sun Sep 21, 2014 5:43 pm
Your car is a: 1981 Fiat 124 spider

Afm factory adjustment

Post by carlospena96 »

I will like to know how to correctly adjust the afm, months ago I got several problems with my injection and found some electrical components were damaged, pay for someone to repair and refurbish my afm, but I feel my car with less power at high rpms and recently the double relay with heavy noisy click click noises, I see the bronze color rod arm a little out of place (the arm don't travel all the black-thing in the electrical component card)
klweimer
Posts: 550
Joined: Tue Mar 27, 2012 7:45 am
Your car is a: 1982 Spider 2000
Location: Arvada, Colorado

Re: Afm factory adjustment

Post by klweimer »

There are lots of threads on this forum on the subject, and I also found this one to cover much of what you are asking about:
http://www.hiperformancestore.com/ljetronic.htm
Kirk
carlospena96
Posts: 62
Joined: Sun Sep 21, 2014 5:43 pm
Your car is a: 1981 Fiat 124 spider

Re: Afm factory adjustment

Post by carlospena96 »

Thanks for the link! Is very useful, tomorrow I gonna check all the steps!
vandor
Posts: 3996
Joined: Sat May 23, 2009 1:23 pm
Your car is a: 1971 124 Spider
Location: Texas, USA

Re: Afm factory adjustment

Post by vandor »

The adjustment screw on the AFM only adjusts idle mixture, so it has nothing to do with how the car drives. There are no other user-adjustable parts on the AFM. It may be the incorrect one, or the spring tension may be wrong.

If the double relay clicks a lot at idle then the AFM door may not be opening enough to fully close the fuel pump contacts.
Csaba
'71 124 Spider, much modified
'17 124 Abarth, silver
http://italiancarclub.com/csaba/
Co-owner of the best dang Fiat parts place in town
carlospena96
Posts: 62
Joined: Sun Sep 21, 2014 5:43 pm
Your car is a: 1981 Fiat 124 spider

Re: Afm factory adjustment

Post by carlospena96 »

Well, found the problem and now adjust the afm, car start and keep a smooth idle
Image
carlospena96
Posts: 62
Joined: Sun Sep 21, 2014 5:43 pm
Your car is a: 1981 Fiat 124 spider

Re: Afm factory adjustment

Post by carlospena96 »

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