[20v] '91 Coupe Overhaul - Question #1

J.B. Hebert jhebert at wrxtra.com
Thu Dec 13 20:17:27 PST 2007

Got a pretty good coolant leak at the water temp sender; more 
specifically, through the water temp sender.  It will need to be 
replaced.  I notice that all the new senders (at least the Vemo ones) 
have 3 terminal plugs whereas the old sender has a 4 terminal 
plug.  Looking at a picture of the new sender, it appears to be 
missing the lower left terminal (with the alignment key 
downward).  Looking in the manual, that would appear to be the "+ 
from terminal 15a".

Can the 3 terminal sender be used effectively?  Is any functionality 
lost (over-temp alert or A/C cutoff)?

Thanks in advance.


No virus found in this outgoing message.
Checked by AVG Free Edition. 
Version: 7.5.503 / Virus Database: 269.17.1/1183 - Release Date: 12/13/2007 9:15 AM

More information about the 20v mailing list