Before I got my dyno tune, my car ran very well with the mail order chip. Only problem was, it was pretty lean, hitting 16:1 afr during the dyno run before the guy shut it down for fear of damaging the engine. With the new tune, when the engine is cold on first startup, the car runs like crap, won't hold the idle, and is virtually impossible to drive. I usually have to sit there for 5 minutes or so to let it warm up before its driveable.
Just wondering if this is normal, or if I ought to take it back and have them tweak it a little. Thanks.
Just wondering if this is normal, or if I ought to take it back and have them tweak it a little. Thanks.