Vespa gts 300 abs/asr removal
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Lurker
Joined: 26 Sep 2020
Posts: 4

Sat Sep 26, 2020 10:27 am quote
Hello everyone

I've bought an engine that came from Vespa gts 300 abs/asr and need it for a swapm i want to put 11' wheels on it and get rid of the abs/asr system.

Does any1 know if the bike will still work normally if I remove the box and don't plug in the sensors?

Do I need to buy another throttle body from an older model?


Any help is appreciated.
Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3222
Location: East Anglia, a dryer region of the UK than Israel
Sun Sep 27, 2020 12:43 am quote
I think we need a bit more information to be able to help you on this one.

What bike are you intending to put the new motor into?

The 2014 onwards abs/asr motors run completely different ecu software to previous GTS300 bikes. To do so, the ecu is a 32bit unit on the new engine. The older bikes prior to 2014 run 16bit ecu units. The two are not interchangeable without significant alterations.
Lurker
Joined: 26 Sep 2020
Posts: 4

Sun Sep 27, 2020 3:13 am quote
I'm putting the engine into a Piaggio Zip. I was hoping I could just unplug the system. Otherwise I would need to get an entite loom of another bike. I've recently made one with a lx 150 ie engine and wanted a bigger challenge, but the only engine available was the abs/asr one.
Lurker
Joined: 26 Sep 2020
Posts: 4

Sun Sep 27, 2020 10:41 am quote
Update: Tried it today, engine starts fine without the abs module. I need to mind the tip-over sensor and the side stand connector.

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Lurker
GT200 & ET4
Joined: 08 Sep 2013
Posts: 2
Location: NW FL
Sun Sep 27, 2020 2:10 pm quote
Great!
A+ for the idea and A++ for the effort!
Ossessionato
2016 Vespa GTS300ie abs/asr/ess Settantesimo '70'
Joined: 11 Jun 2011
Posts: 3222
Location: East Anglia, a dryer region of the UK than Israel
Mon Sep 28, 2020 1:53 am quote
Very good. It may start, does it actually rev ok though?
Lurker
Joined: 26 Sep 2020
Posts: 4

Mon Sep 28, 2020 2:21 am quote
Stromrider wrote:
Very good. It may start, does it actually rev ok though?
Tried it with and without the abs module connected. There doesn't seem to be a difference, I revved it as much as I thought the plastic box would handle.

The check engine light is permanently on, i want to do some kind of reset or read the code to see whats causing it as I plan on installing onto the zip aswell.
Example on the 150 ie (blue led):
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