Re: 1993 240 DL Wagon rough idle on start
James Sweet <firstname.lastname@example.org> wrote:
>> I've often wondered if we could test the basic operation by putting a
>> voltmeter on the output and seeing what it was giving at idle, at a specific
>> low cruise, etc. and comparing that with the readings of one that works. I'd
>> think the voltages would either be way off or would be jumping around.
>> Unfortunately, I haven't found a good way of connecting to it.
>That's a problem I've encountered as well. It'd be nice too if there was
>a good description of what each pin on it does too, it's a lot easier to
>diagnose something if you know what to look for.
I think that with the necessary accuracy of the signal from the AMM at
various airflows and at a wide range of temperatures, the testing rig
could get quite expensive. I think that it just might be more
economical to just keep some good spares on hand. Even if you had some
good way to test one at idle, it would be difficult to accurately test
its linearity through the RPM range.
Randy & \ \/ /alerie's
'90 245 Estate - '93 965 Estate
"Shelby" & "Kate"