Date:         Sun, 14 Feb 1999 11:11:47 -0500
Reply-To:     Kay O Fremgen <kayfremgen@JUNO.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Kay O Fremgen <kayfremgen@JUNO.COM>
Subject:      hesitations (air flow meter)
Comments: To: JLucca8410@AOL.COM
Content-Type: text/plain

Hi Joe,

There is not a lot that you have to know about this AFM. 1 The air vane
(flap inside the meter) must open freely, smooth with on restrictions
other then the spring tension. 2 on page 24.45 of the Bentley you will
find the test for the AFM step 1 and 3 are clear. It is test 2 that I
unclear. Bosch has a better way of testing this. Remove the black cap and
connect a volt meter (analog meter it is easier to see the results) to
pin 2 and 3 of the potentiometer (you will find the numbers if you unplug
the 4 pin wire at the AFM) then plug the wire back in and turn the
ignition on then slowly open the air vane it should start at 0.2-0.3
volts and then slowly move to 4.5 Volts with on jumps.

Good luck
Kai

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