What would happen on an >04 bike if you were to remove/disable the throttle position sensor? Would it run the same as an <03 bike, or would there be some problem? Would there be any effect (negative / positive) on performance? Emissions?
Bikes like the E that do not have a TPS run a 2D ignition map and engine timing is dependant only on RPM.
Bikes such as the F that use a TPS run a rudimentary 3D ignition map and the ECU can now sense and bring throttle position into its equations and in turn provide more accurate timing across the rev range that is better suited to the engine RPM/ load combination. This gives better throttle response, better economy and reduces emissions.
Its a vital part of the system and if you were to disconnect the TPS there is no way on earth the bike will run any better. My guess is the ECU would default to a `limp home` predetermined factory set 2D ignition map.....either that or it wouldnt run at all.
EDIT.......After some research it seems some owners claim that disconnecting the TPS has no apparent effect and does nothing, this I find hard to believe as it is obviously there for a reason :dunno_black:. It leads me to suspect that the bike DOES indeed default to a 2D map when the TPS is taken out of play but also that those owners just dont notice it :thumb:
People will notice what they want to notice. :icon_mrgreen:
Quote from: burning1 on October 31, 2011, 04:36:48 PM
People will notice what they want to notice. :icon_mrgreen:
Same thing with the neutral switch. Newer ones have wires for 1st and 2nd gears that go to the control black box. People say disconnecting them makes no difference. Must be there to alter timing in conjunction with throttle position when in 1st or 2nd gear.
i unpluged my TPS and ran it four minutes and it didnt seem to make any difference BUT the next day i noticed the revcounter was reading about 200 rpm higher at 100kmh,, after a week of running it has reset itself .
I will say, the sensors were NOT added for performance reasons. Lots of cheap things Suzuki could have done to make the bike perform better that they didn't for cost reasons, no doubt the sensors are there for noise and emissions reasons.