Ok I have been running the bike with the same map for last 11 months with no problem. Today I decided to remove the exup valve and at same time I installed the grave switch to keep light from coming on. At same time I installed some factory pro velocity stacks. After I installed all this I started bike and let it run. I actually let it run without the air filter cause it was drying. I did not ride it without filter. No check engine light for like 5 minutes then all of a sudden check engine light came on and I cannot get it back off. I even put the filter back on and disconnected battery like 5 times and reconnected the graves switch with no luck. Also I noticed now when I just turn the key on I get a 17 and 18 alternating back and forth. Is that the light codes maybe? Never seen those b4. Any help on this guys is much appreciated. Sorry for the long post. Thanks in advance.
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