hello,
first post here but I am experiencing the following issue. new to tuning as well. truck also came with this tune and mods before I purchased.
when driving my truck around I have a AFR reading right around stoch or 1.0 lambda. however, after about 5 mins of driving, from a cold start or warmed up, my AFR goes lean by 10% for a little bit and then rich by nearly 10% and then seems to equalize out after a little further. on the log file this occurs at approx 3 min. any suggestions? truck info below as well as files..
2006 GMC Sierra
4.8L v8
BTR Cam/spring kit
Full Exhaust system
Innovate Wideband
please let me know if im missing information.
Thank you - Tyler