SV650.org - SV650 & Gladius 650 Forum - View Single Post - TPS Adjustment Step-by-Step Pictorial Guide

23-01-16, 07:17 PM

I've heard the SV has a very basic injection system but I can't any information about it. For example the ECU in my '88 325i has just three maps selected by the TPS, (idle / off idle / WOT > 80% throttle open) then relies on air flow (MAP sensor on the SV) for fuel & timing during the off idle map. Ironically the switchable auto ECU for the E30 had a very fine TPS which was attached to the bottom of the engine ECU TPS. So fine it fact that it is preferred for accurate mapping over TPS's from vehicles more than 20 years newer, so it's not like it wasn't possible!!!!

Essentially (in a production vehicle made down to a price) increased ECU complexity is only required to achieve emission standards and as the emission requirements of bikes were lower during the bulk of the SV's production so a complex ECU was not required. I'd be very surprised to find a 3d map in there!!!

Apologies I digress.

23-01-16, 07:17 PM	#343
AlexAdams Guest Posts: n/a	Re: TPS Adjustment Step-by-Step Pictorial Guide I've heard the SV has a very basic injection system but I can't any information about it. For example the ECU in my '88 325i has just three maps selected by the TPS, (idle / off idle / WOT > 80% throttle open) then relies on air flow (MAP sensor on the SV) for fuel & timing during the off idle map. Ironically the switchable auto ECU for the E30 had a very fine TPS which was attached to the bottom of the engine ECU TPS. So fine it fact that it is preferred for accurate mapping over TPS's from vehicles more than 20 years newer, so it's not like it wasn't possible!!!! Essentially (in a production vehicle made down to a price) increased ECU complexity is only required to achieve emission standards and as the emission requirements of bikes were lower during the bulk of the SV's production so a complex ECU was not required. I'd be very surprised to find a 3d map in there!!! Apologies I digress.