Hi all, Long time lurker, but first time poster
Got my bike at the start of this year and put about 2500 miles on it (I got it on 31K miles, so now approaching 34K). After summer was finished, I started collecting a few performance bits to fit over winter for next season: Power Commander, Decat, Quickshifter, Autotune.
Just before Xmas I fitted the decat, chopped off the end of the exhaust, reinstalled with the new stainless pipe, all went perfectly well. Test ride (15 miles) all went well.
Next time I went out, the FI light came on. Thought I might have not plugged the lambda back in properly or there's now an unexpected value because of the missing mid-box. Unfortunately I didn't have a bit of jumper wire on me, and whenever I killed the ignition the light would go out. I had assumed it was lambda related, so on the next garage session, I fitted the Power commander, o2 sensor remover and quickshifter. This didn't solve the issue and the light came back on. After a few times of riding, I made sure I had my jumper wire and spare key with me to leave the bike running while I did the jumper to read the code.
The code was C17 (AP sensor reading under 0.5V or over 4.85V). I didn't touch anything in/around the airbox on the side that the air pressor sensor is on, and the service manual says it's got to be one of wiring, vaccum pipe or sensor issue.
I was wondering if anyone else has had the same issue and resolved it (a google search doesn't seem to show anyone with the GSX-S1000 has had this problem before) and this thread is just as much to record how I solve it as much as it is to ask for anyone's else experience with any similar issues.
Next steps are to get the tank off, check condition of pipe from throttle body to AP sensor and check wiring. If they all check out, will be sourcing a new sensor.
Edit: This should have gone in the troubleshooting forum, I obviously didn't scroll down far enough on the main page!