One Injector held open?

[R100RT]

2 cylinder BMW motorbike, MicroSquirt, Delphi H.I. injectors, have had running successfully last year, rewired new longer amp seal connector/cable assembly this winter and first start up today. Also new injectors and fuel regulator (& pressure confirmed by gauge to be good).
I had issues with the bike running on one cylinder, wasted some time troubleshooting Edis, then began to gather it might be lean on that cylinder. I ran an "injector test mode" sequence for the heck of it, and seemed to have fuel on both banks when I did that. Afterwards however, I found a new symptom in that the opposite cylinder began flooding, with the injector remaining open full state. Pulling the fuse for that circuit would neutralize that happening (hence injector not stuck open on its own, but ground signal from M.S. suspected as the issue).
So, not sure if this is something that happens, others have experienced, etc. Wondering about loading new code, can't see reason for the behaviour?
Any thoughts or recomendations much appreciated.

[R100RT]

Confirmed that problem is in M.S.
The Micro Squirt seems to have failed on one "Injector" circuit, floods that cylinder to an extreme, and when engine keyed off, the fuel pressure in the rail drops in an instant through it once power put back on, (normally putting power back on allows a few seconds of pump, then pressure stabilizes and holds for very long periods of time as you all have no doubt experienced too).
I did reload code this morning, and then manually re-entered all settings. I had the bike running very nice, on one cylinder however. I did check wiring between injectors and M.S. and its okay (I powered the pump manually with the M.S. amp seal connector removed, and that injector acts normal again, no leaking down physically)
I assume something has burnt out on the M.S. ?
Anyone else experience this?
Seems like the only qualifying circumstance was that I had just finished an "Injection Test" sequence (did find it would not get back out of that mode without several attempts of powering down, turning off, etc. as recomended on that page.)
Any recomendations from others?
Any help appreciated.
Lorne.

[R100RT]

After several hours looking through posts and links, thinking either a FET is fried (although no appearance or smell of problems within) - or somehow it still is holding one side in test mode, the following pasted from the test instruction page might apply for that:

Note that in some versions of the code, the program will not come out of injector test mode, unless you change the number of squirts to 0 while the 'test' is running. This then stops the injectors firing. Then you can change the mode to normal.

Anyone - comments on that? If the test mode is the issue, then I'm less concerned to continue with the project. Otherwise I won't be too inclined to leave the driveway with no idea of what allows such a failure to take place.

[R100RT]

I ran some fluke readings back into the M.S. while both injectors were disconnected and the offending side has continuity when it should not (blue/ green leads). I assume some kind of spike during (or coming out of) the test mode did the nasty job.
Tricking the test mode by entering the "0" into number of injections does help backing your way out of that mode, but has no effect on this problem - that might be useful for a collective situation whereby both circuits are uniform and it won't get back into normal again.

My plan thusly becomes - running the 2 Delphi high impedance injectors from the one remaining functional - side shouldn't be beyond its current range? Squirting at the same moment is fine, not sure what I'll change in the figures, but probably double the injector lb/hr size.
I will attempt to get the board repaired off season, I'm already struggling against family opinions towards this kit .

[Matt Cramer]

It should be possible to use one injector channel to drive two high impedance injectors; that's well within their design limits.

[24c]

... I'm already struggling against family opinions towards this kit .

Now that made me laugh
Definitely been there, "you are wasting your time and money etc" from various sources, but I'm going downhill now. So after a few years of struggles, when others don't seem to have them, I am smiling.
You'll get there, just gotta get rid of the simple things.

Back on topic, I am using four injectors off two channels, and the bike seems better on this, than the sequential system that the OEM ECU uses, so I don't expect your project will suffer.

[R100RT]

Well 24c, I appreciate that vote of support! I actually have a kind of natural defensive screening mode that turns on now, anytime the discussion might head that way lately, and I just indicate things are going pretty good (my wife seems to read through it tho).

Been meaning to ask, what does "24c" stand for?

[R100RT]

Any body experienced a Megatune "Configurator" mode failure? Going into that page, a mtCfg MFC problem message comes up just before she shuts M.T. down. Makes it hard to get in there and deal with ini files and such.

[R100RT]

Okay, here's a pitch for the code of pride thing where you look adversity in the eye and never let on stuff is going sideways.
Its interesting to recognize you've wasted another day on the computers (twin units for web access, downloads, and some real serious progress) and then challenge that observation by my better half that I will not be reinstalling the Bings anytime soon in order to actually enjoy the bike and such.

[R100RT]

I think the "Death Watch Beetle" of random malfunction (cousin of "Death Watch Beetle" of metal fatigue) took a break from hanging at my house and ended up in Vancouver with our hockey team last night, the Canucks lost their second game in overtime to the "LA Kings". (hockey is that game we watch up here, guys on skates shooting a little puck at other players, wrestling every few minutes, that kind of thing).
Regardless, a major wipe of the tuning laptop took care of the "MFC application" problem for the configurator (Vista ), and all that time going over forums and procedures put to rest some lingering questions relative to ini file completion, and such. The bike is back on track, runs very nicely and ready for next level tuning again.
The bottom line to this however would seem to be a vulnerability with the "Injector Test" mode which I would now tend to caution against using, certainly won't be going into it any time soon again.
I'll be getting my module fixed shortly, just running both injectors off one driver now. I've also ordered another module from DIYA as part of my long road trip strategies, etc.
Lorne.