Mutil-Function Temp Sender - Ops Check?

[Nate Stuart]

Yup, the MFTS only comes into effect on an overheat condition, and tells
the ECU to stop using the WGFV to try and keep temps down. The actuall
engine temp reference is as Marc suggested and thats the little 1 pin
jobbie.

-Nate
'89 90tq
www.newtsplace.com/90tq


> I am 99% sure that the ECU does indeed care about the MFTS.  As it is a
> critical test component on the diagnostic list for the WGFV.
> Maybe I read the Bently wrong...
>
> Rob D.
>
>
>
>
> Marc Swanson <mswanson at sonitrol.net> on 09/10/2002 10:07:32
>
> To:   robert_a_dupree at bankone.com
> cc:   quattro at audifans.com
> Subject:  Re: Mutil-Function Temp Sender - Ops Check?
>
>
>> So on a hunch he disconnected the MFTS and nothing, absolutely nothing
> is
>> different.
>> Since the other components in the added boost arena have passed tests
> it
>> seems like this is a likely culprit.
>
>
> not so fast.   IIRC the ECU doesn't care about the MFTS (Multi Function
> Temperature Sensor for those not versed in acronyms).  It uses those
> little single pin temp sensors (one in the head, one in the coolant
> neck) to monitor the running temp of the engine.
>
>
> Later
>
> --
> ----------------------------------
> Marc Swanson, Software Engineer
> Sonitrol Communications Corp.
> Hartford, CT
>
> Email: mswanson at sonitrol.net
> Phone: (860) 616-7036
> Pager: (860) 948-6713
>  Cell: (603) 512-1267
>   Fax: (860) 616-7589
> ----------------------------------
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