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When you put a new thread up in the Workshop please put your car's year of registration (not plate or model year) in the post subject/thread title, along with just a brief indicator of the problem.

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PostPosted: Tue Mar 23, 2021 4:19 pm 

Joined: Thu Feb 04, 2021 8:07 pm
Posts: 2
Car Models: V6 2.8 SportWagon
Wondered if anyone could help me with an issue I've noticed this morning with my 2006 9-3 (SID in the dash)

Basically, my Average MPG is locked at 2.8mpg regardless of how many times I have reset it. I've tried clearing it which resets it to --- but then it just pops back on 2.8mpg after a few seconds. Clearing the entire trip computer by holding Clear for 5 seconds has the same effect and after a few seconds of driving, it defaults to 2.8mpg.

I disconnected the battery and left it for an hour, connecting it back up gives me the same result and I pulled a fuse for the SID and reinserted it, but no change. Normally this wouldn't bother me as I don't use the average display, but the average MPG being so low is making the DTE figure drop as I drive. Clearing the computer my DTE is showing 140 miles, and after a minute its down to 80... another minute it's 35 (etc). If I clear my computer again at this point, it jumps back up to 140 miles before doing the same. My fuel gauge remains on 1/3 throughout from what I can see.

Has anyone else had any issues similar to this, and if so, how did you resolve it?

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