Hi, I've recently buy for pure curiosity an odb Bluetooth scanner, on my 2017 Opel Corsa E 1.2 70cv manual (general motors era, not PSA), long term fuel % trim - bank 1 show a value of: 8.59%, the short term: -0.78/1.60, Timing advance -1°, Mar air flow rate: 1.6g/sec. All this value during idling at 679 rpm, car have now 56k kilometres, In my opinion the value of the long term is too high but the car dealer is not worried about that, I've taken very care of my car, oil and filter change every 10k kilometres, can anyone help me to understand better if the read values are ok? I'll appreciate it a lot, buy!
well it runs okay I wouldn't worry about it but timing at minus one that's really not too far advanced not only they're like 5° before top 10 center
Thanks you for your time! I will ask to my mechanics at the Opel dealer next time about the timing advance value. Best regards Skotty ,from Italy, Verona!