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Alfa 156 1.6 trip computer problems


shark_90
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In some moment(s) of madness, both my Dad and his girlfriend bought 156's. Dad has a 1.8, his girlfriend has a 1.6. His girlfriend has been complaining about really poor fuel economy ever since she got it, I didn't ask exactly what it was returning but I suggested maybe because it's a fairly small engine which isn't particularly torquey.

It turns out her trip computer is reading around 17mpg on average, which is obvioualy crap. Dad borrowed it for a few days to see if he could do any better, and it turns out although the trip is reading 17mpg, it's actually doing more like low-mid 30's from a calculated reading smashfreakB.gif

Now here comes the weird bit. The odometer is reading miles correctly. The trip computer however isn't. I'm not sure on the precise numbers but Dad did around 300 miles in it, but the trip only showed something like 120 (he reset them all when he got it as he was trying to prove/disprove the fuel economy). The trip seems to be misreading the miles covered, and working out the mpg based on an incorrect mileage reading.

Does anyone have any ideas as to why, or how to fix it? Is there any VAG-COM style diagnostic software I could use to have a snoop around the car's computer system to see if it's an incorrect setting somewhere?

beerchug.gif

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Now seen as you have been horrible about the 156's by saying it was a moment of madness, I'm not going to tell you. 169144-ok.gif

Probabaly a fecked distance measuring sensor or a speedo header, if it's the speedo header then it will wipe the mileage off the clock. You can get VAGCOM like software to use on your laptop for cars built before 2001 from http://www.alfadiag.net/

Where about's are they Ben, as I could probabaly point them in the way of a good specialist that won't muck them about.

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