UPDATE: a fix for this issue is now available. You can mail in your gauge to have it re-flashed with the new code. Read on, or jump to
post #32 for details.
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I plugged a ScanGauge (SG1) into my dad's 2006 Corolla automatic today, and noticed it does
not read "9999" in the instant MPG when coasting up to a stop with the transmission in neutral and the engine off.
The engine was killed with the key, then switched back to "on" again.
The SG1 is set to "hybrid" fuel type to ensure it stays awake.
Instead of 9999, it showed me these instant figures (MPG US) at these speeds (km/h):
Code:
km/h MPG(US)
55 340
52 320
50 300
45 270
40 240
35 210
30 170
25 160
Note: remember, these figures are shown with the engine OFF. I didn't check, but I suspect these would be numbers I'd see if I were coasting while idling.
Has anyone else seen this? I Googled but didn't turn up this specific issue with this car.
I haven't tried it with my SG2 because it's in my car at the Halifax airport.
The problem here is that the SG1 would be under-reporting trip/today/tank MPG if any engine off coasting is done.