Intermittent fi (fuel injection) warning

I found SV650 Error Codes on the Net - they might be useful:

CODE MALFUNCTION PART REMARKS
COO None No defective part
C12 Crankshaft position sensor (CKPS) Pick-up coil signal, signal generator
C13 Intake air position sensor (ZAPS)
C14 Throttle position sensor (TPS)
C15 Engine coolant temperature sensor (ECTS)
C21 Intake air temperature sensor (IATS)
C23 Tip over sensor (TOS)
C24 Ignition signal #1 (IG coil #1) For #1 cylinder
C25 Ignition signal #2 (IG coil #2) For #2 cylinder
C28 Secondary throttle valve actuator (STVA)
C29 Secondary throttle position sensor (STPS)
C31 Gear position signal (GP switch)
C32 Fuel injector signal #1 For #1 cylinder
C33 Fuel injector signal #2 For #2 cylinder
C41 Fuel pump control system (FP control system) Fuel pump relay
C42 Ignition switch signal (IG switch signal) Anti-theft
C49 PAIR control solenoid valve

just a thought, my bike displays the fi light if the connector boxes on the air box are not attached etc, it could be a dodgy connector to one of these sensors maybe?

had a problem very similar to this, once the bike was in dealer mode, C42 came up, turned out to be a bad connection on the block connector from the ignition barrel