AFM test results?

[Arizona_928]

with the arm 1/2 way it's only reading 1 volt, with arm 3/4 it's reading 1.3volt, and from 3/4 throttle to WOT it jumps to 7.5 volt. Bad AFM??

[guru944]

Hey Brother;

With the door Closed (idle, no vacuum leaks) the reading should be ~0.352-0.46 at idle.
at 1/4 1.11-1.125 volts
at 1/2 2.16-2.281
at 3/4 3.23 - 3.377
full ~ 4.37-4.52, volts It should never go past 4.6 volts ever...even at full throttle

This is what i have measured.....

The voltage sweep should be linear....no jumping in voltage.

and good DMM is really need, verify its 0.00 volt calibration....

Hope this post was helpful
later.