Can someone tell me the signs of a bad TPS sensor. My bike acts up now and then. Its hard to explain, but I will try. Sometimes it revs up at idle, to around 2000 rpm, this may only last a few seconds. Sometimes when you give it gas and go through the gears it will cut out , bad . This also only last a few seconds. It never runs bad when you are just cruisin. It also has started using a lot more gas. 35 mpg, it has gottin 47. Thanks for any help.