Hi there,
Just been doing some logging in an effort to diagnose worsened fuel economy and an issue where my engine decides to rev for no reason occasionally when I am idling at lights. The revs might jump 500rpm from idle and sit there until I blip the throttle or they come down of their own accord many seconds later. The car otherwise drives find and seems to accelerate smoothly and boost.
Looking at the logs from a sedate drive home in 'I' mode I can see my A/F Correction maxes at 18.75% and drops as low as -22.66%. Is this normal?
The LV guide that BBB posted at this link (https://flic.kr/p/nQtb8N) suggests anything over +/- 15% in LV is an issue but is that percentage different from the raw data I am seeing in Romraider?
Any help or advice appreciated.
Regards,
Tim