Join Date: Aug 2008
Location: Bluemont Virginia
Mentioned: 0 Post(s)
EFI Light on then off seems fine now?
So I'm on a trip down south and stopped at a back woods gas station late last night and filled up. Bike has been running great but this morning when I started her up (pretty cold and lots of moisture in the air) it seemed to be idling slow. When I pulled out onto the road I got a EFI warning light and then the engine started to race. Light was solid on no blinking. I blipped the throttle and it stopped but moments later it raced up to about 6000 or 7000 rpm's and I shut it down. EFI light was on the entire time. I pulled over let it sit for a moment and fired it back up and no more problems. I stopped a little later
and added a little stabilizer to the fuel I may have gotten a little H2O in my back woods fill up? I'm now 150 miles into the day and it seems to be fine Ive stopped 4 or 5 times and shut it down and fired it back up no problems. Thoughts anyone?
After thinking this through it cant be water in the fuel because water in gas manifests by misfires, stalls or hard to start along with very poor low speed performance, so I doubt it is water. So back to EFI light and high revs which needs air and fuel. Mostly air though. The bike is a regular throttle cable and a butterfly. So, only a massive air leak or me holding the throttle open can do that. Right? The only leaks that can occur are if the throttle body is loose in the manifold, a crack in the manifold or a cracked vacuum line. All of which can 'come and go' I guess. A massive vacuum leak combine with a shut throttle tells the ECU something is amiss and you can get the EFI light. OK so now it seems to be fine? This really has me scratching my head and if the bike seems fine, chalk it up to gremlins and forget about it or is something coming my way that’s not good. Ill check my phone as I travel north and Im also going to now get off the back roads and hit the super slab so if something goes wrong I can be in a place to get better help.
Thanks in advance for replies.
Last edited by douglasgraham; 01-26-2012 at 10:12 AM.