[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: Board computer
> I just got my hands on my Mothers-soon to be mine- 1991 90. > I need help > with the trip computer. The average speed, time and miles to > empty all > work fine. but the instantanious fuel consumption, average fuel > consumption both read 200. and the g-> always reads 0.0 > what do i need > to do get these working again. If i reset the average fuel > consumption > it goes to 0.0 but as soon as i drive for any distance it goes 200. ... I had a similar problem on the 5kCSQA I bought ... actually got a couple hundred off the asking price because of it ... assuming that you 90 has a CIS system rather than EFI (Motronic) I'd think that they would work the same. What I found was that the variable resistor that reported the position of the airflow sensor had opened up. I used some carburetor cleaner followed by a spray of DeoxIt and got the fuel economy parameters to work. On my car the thing is buried under the fender, but I was able to get access by removing the lower airbox and air filter ... HTH! Steve Buchholz San Jose, CA (USA)
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