Have you found out any more about this.... Cable was fine and you getting a New ECM?
Drooling eh? No ECM for you :newsmile011:
Found an intermittent inside the front injector connector (TFI connector...bad crimp, etc). I tried to pull the pin to see, but apparently a special extraction tool needed. Without the code, I might never have found it. I still almost missed it. I could move the wires all over the place and no disconnect. However, if I position the wires "just so", and move them from there, "just so", one wire opened right up.
Dobeck stepped right up, and put a new tuner in the mail right away (very small amount from me, and Dallas bumped me from a TFI to a GEN3). I'm waiting for it at the moment. Dobeck customer support has always been superb.
Meanwhile, I removed the TFI, and installed the stock airbox, so I can run with the stock fuel map without burning up my scoot. I am back on the road, if it would only quit raining around here. So far so good.
Either the TFI interferes with open injector circuitry (there is a patented [Dallas said] several K of resistance in line with the injector drive from the ECM), or the ECM requires many cycles of continuous open before a code is thrown. Either that, or the injector line status is only polled, at some infrequent rate. I was amazed how bad she had to run before the code was thrown (she did it on the way home before I could get her home for investigation, almost did not make it). I think it is the polling option, since she improved for quite a time before the code went to historic again.
Note: Please know that removing the TFI ground does not remove all TFI circuitry from the injector drive. There remains the wiring harness, and some proprietary circutry still line with the drive.
I am going to ride this puppy for a significant period. I'm a bit gun-shy by now, since I have found so many things stacked, that cause the same symptoms: fuel line pin holes, varnished fuel system resulting in sticky pressure regulator, leaky intake seals, cracked rear headpipe...After a couple of good long runs with the club, I'll put the tuner back in and stage-1 airbox back on.
Enjoy,
Rich P