Praying to God someone can help me here or has had a similar issue. I'm day 6 into this and about to shoot myself 🫡
Bike is only sparking at cylinder 2. I thought I had it figured out earlier on day 5 as I was pulling on the main harness on the left side of the bike under where the throttle cable hooks up too. The bike fired up on all 4 cylinders! Then as soon as I let go of the harness the bike would die again. I'm still getting codes 23 and 24 for O2 sensor heater circuit.
Safe to say the issue must be in the harness somewhere near the left side of the bike. The broken wire maybe related to O2 sensors and ignition pulse generator?
There's a ground connector there wrapped under the tape that I suspected to be the culprit. I redid the grounds there with a terminal block and wired it directly to the frame. I really thought that was going to be the issue. I plugged everything back in to start the bike and it's still running on cylinder 2 only!
I get all the frame grounds on the ECU connector and they tested good. Does anybody know on grey ECU connector pin b16 labeled as a common return for a bunch of sensors (green & orange) is suppose to have continuity at the ECU connector?! Because that I am not getting.
Also where is plug b2 and B15 they speak of in the ECU pin out diagram.
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-I also had fi code 19 on day 2 this problem occurred. Ignition pulse generator. I threw a new one in and problem still occurred.
-new sh847 r/r and rewounded stator with upgraded wiring and fuse (charging system confirmed good, will charged perfectly on 1 cylinder when reved up to run)
-new air filter and spark plugs
-checked yellow ground connector up by the headlights in the front fairings
-redid ground connector left side of the harness by the battery/throttle body
-checked frame grounds on pin ljtB1, b2 , b14 on ECU grey connector
-confirmed coilpacks are all working and receiving 12 volts and ground at connector
-tried swapping coilpacks, confirmed only cylinder 2 connector fires the coilpacks
-fuel is good, only cylinder 2 header gets hot. Rest are ice cold.
