Date:         Tue, 3 Apr 2001 19:13:40 -0400
Reply-To:     David Beierl <dbeierl@ATTGLOBAL.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         David Beierl <dbeierl@ATTGLOBAL.NET>
Subject:      Re: Working ranges for Temp sensor and AFM
Comments: To: Javier <zavlomja@ec-red.com>
In-Reply-To:  <000001c0bc46$f69eaaa0$7a8e25c8@carlota>
Content-Type: text/plain; charset="iso-8859-1"; format=flowed

Ah -- gotcha.  I'll answer tomorrow unless someone else does, don't have 
Bentley with me right now.  At equal temperatures, though, the Temp I 
sensor in the AFM should measure about the same as the Temp II sensor in 
the motor, the specification is the same.  Very roughly, from several 
kilohms cold to a few hundred ohms or less hot.

If you measure voltages, though, the AFM should run smoothly from zero to 
about five volts (with ECU connected and ignition on) as you open the 
flap.   I don't have pinouts, but there is a ground lead, a +5 volts lead, 
the wiper lead, and either one or two for the Temp I sensor.  The temp II 
sensor should be ?a volt or two? cold, and down around one or two tenths of 
a volt warm.

david



At 03:35 AM 4/3/2001, Javier wrote:
>I am trying to help a friend with his van; we disconnected the Temperature
>sensor after feeling that idle was errant, and,.... it worked (although with
>slighty high rpmīs).
>That is why I would like to know in which ranges (ohms) does this sensor
>work in order to find if this is malfunctioning and so, we will replace it.
>(Will use a multitester)
>
>Regarding the AFM (Air Flow Meter), it is my friend who thinks it is the
>defective one.

David Beierl - dbeierl@attglobal.net