Jeff Kopp wrote: > Yes I agree. Not to mention O2 transitions and maybe some other things. > I'm just trying to figure out what might be overiding the timer at the > least. The scan tool probably. If in ALDL mode, or the mode that grounds the ALDL input pin (I call it Diags mode), it will ignore min run times, and if it meets min temp, it will go CL. Scot Sealander