Lots of good ideas; one or two of them are probably right! BTW, my GTV6 also does this sometimes, but not very often. I have played with a theory that has to do with the fuel pressure and the possibility of vapor in the fuel line under various conditions, but haven't bothered to think it through much. Meanwhile, the plenum should not blow off due to detonations, but we all know it can happen; many theorize that's the reason for the GTV6 "tea tray." The solution told to me long ago, which always has worked on my GTV6 (about 22 years and counting) and on the Milano (75) I had for about five years: make sure the screws fastening the air induction tube to between the plenum and the AFM are backed off a bit, not dead tight. This way, if there's a detonation, it just knocks off the tube and doesn't launch the plenum into the hood. Charlie LA, CA, USA 84 GTV6 91 Spider 11 Hyundai Sonata In a message dated 4/3/2012 5:55:57 A.M. Pacific Daylight Time, [email protected] writes:
I usually never touch the throttle during starting (too many stories of plenum-go-boom) but have been told that going full throttle during cranking puts the L-jet into "flood clear" mode where it doesn't fire the injectors. Well, I tried that once when the engine died as described above: it did fix the problem, which lends credence to the wet plugs theory. But it also went ahead and started even with the pedal full down which may disprove the not-firing-the-injectors theory. So I'm not sure I'd recommend this given the L-Jet's predilection to occasionally blowing off the plenum if given throttle during cranking. Tom Gubiotti -- to be removed from alfa, see http://www.digest.net/bin/digest-subs.cgi or email "unsubscribe alfa" to [email protected]
