> > Date: Sun, 28 Mar 2010 19:41:11 -0700 > > From: Will Owen <[email protected]> > > Subject: [alfa] 164S gas hog! > > > > Okay, I'm baffled. I don't drive the 164 much differently from the > > Milano; .... > > ....The 164, though, has given me > > less than 15 out of the last two fillups. That's just unacceptable for a > > modern 3-liter sedan.... > > > > Is my experience out of line? I read somewhere recently of someone's > > extolling the 164's fuel economy; unfortunately I just nodded and passed > > on by instead of clipping or bookmarking it. Comments? Advice? > > > > Will Owen
And another thing.... The throttle switches. There is a "closed" switch which tells the ECU to shut off fuel if the RPM is above a certain value. If that switch never -quite- closes, then you will suffer lower fuel economy because the engine keeps burning at an idling rate even when decelerating. This might not be of so much notice in stop and go traffic, as it isn't clear that the fuel shut-off conditions would be met, but that is indeed another possible reason for impaired fuel economy with these cars, and it's not an S-specific issue. I think the "other" throttle sensor on the S is an input for the suspension-control ECU, but I don't have the manual close to me and don't clearly remember just what it is that the S-specific throttle switch does. That is the one you can see pasted onto the throttle cable wheel mechanism. The one for fuel shutoff is buried inside the throttle box. Michael -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
