How To Test An Afm?

[Matteo 17 1 Cars]

Hello, is there any satisfactory way of testing an AFM for proper working?

Thank you.

[boombang 2]

yup, IIRC is fully detailed in Haynes workshop manual

 

Page 95 of the 1993 edition I have here.

 

Sure there is a link to a downloadable copy on here somewhere but I can't find it on a search.

[Matteo 17 1 Cars]

I have the Haynes manual n. 0932, but I think nothing is written about testing AFM. Only how to set the throttle initial position and throttle switch setting...

[DamirGTI 342]

http://frwilk.com/944dme/afm.htm

 

Have fun !

 

Damir

 

EDIT : crap the liks doesn't work (again) i'll see if i can find a scan copy of this doc ..

Edited January 29, 2009 by DamirGTI

[boombang 2]

I have the Haynes manual n. 0932, but I think nothing is written about testing AFM. Only how to set the throttle initial position and throttle switch setting...

Chapter 3

Part 26 "Fuel injection system - complete test"

Has it all there with readings and which terminals to test.

[Matteo 17 1 Cars]

OK, I think we have different Haynes manual...

[DamirGTI 342]

I've found scanned copy of this AFM testing/retracking doc. above , so if you want it please send me your email on : damir_k79@yahoo.com ..

 

Damir

[boombang 2]

Click to enlarge

 

Edited January 29, 2009 by boombang

[Matteo 17 1 Cars]

This is mine

 

 

I cannot find that page

[boombang 2]

You won't find it in there, you have the Service and Repair manual not the Owners Workshop manual.

 

Click the links above and then full size pics, tells you what parameters are.

[Matteo 17 1 Cars]

OK, I am going to buy the Owners Workshop manual; I cannot miss it.

Damir, I sent you email.

[DamirGTI 342]

.. didn't receive your , email dunno why write it here or if you wish on my PM and i'll send you this doc.

 

Damir

[Ethos 0]

I think that guide must be for a 1.6/1.9 actually. I've found another metronic guide and it says pin 2 and 4... which on mine varies between 550-1100 or so.

 

"For Motronic: Disconnect the 5-pin connector from the AFM, and measure the resistance between pins 2 and 4. Like the Jetronic type, it should vary with the movement of the flap in AFM. Resistances between 2 & 3, and 3 & 4 should be around 300 Ohms both. Check the resistance between 4 and 5, it should be around 2-3 KOhms at 20 Celsius."

 

With the two nipples at the top the number is 54321.

 

2-3 for me is 800 and ping 3-4 is 350, 4-5 is 2k like stated.

Edited July 2, 2009 by Ethos