Ok...I'm going nuts! I've been dorking with my tune for a while(beginner). I got the SD only portion of the tune fairly ok, but idle surged and idle timing was like an EKG. So I OL tuned the idle. The problem I've been having is that the ETC is non-responsive on startup every 3-4th startup. If I put the old crappy tune in the pedal responds fine.
While tuning VE, I noticed that the DTC's for the MAF were not set to "NO ERROR reported", so I set them to "NO ERROR reported". As soon as I do this, I always get a responsive pedal, but the car runs like crap! Argh! The MAF is zero'd out and the fail is also at 0 Hz.
I know I must be missing something simple.
Does the ETC cut out if startup is too rich or lean?