Gear on display

s300 and SManager software questions & answers
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autox19
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Gear on display

Post by autox19 » Wed May 01, 2019 12:34 pm

I have an LS transmission, and I dont have anything from it going to the ecu. so I would expect it to not show anything in the gear selection on the display in Smanager. What I find is it switches 1-5 pretty randomly. sometimes staying "in a gear" for 5-6 seconds, sometimes a blip. Should this be of concern? I am not having any setting change with the gear selection.

Odie
Fiat X19 with B16

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Spunkster
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Re: Gear on display

Post by Spunkster » Wed May 01, 2019 2:16 pm

Do you have a working VSS?

autox19
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Re: Gear on display

Post by autox19 » Wed May 01, 2019 2:29 pm

Yup yup. Vss works perfectly.

Odie

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Spunkster
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Re: Gear on display

Post by Spunkster » Wed May 01, 2019 2:42 pm

Post your calibration as well as a Datalog showing the issue.

autox19
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Re: Gear on display

Post by autox19 » Wed May 01, 2019 3:01 pm

here ya go. this is NOT a tuned calibration. Just getting things going.


Odie
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Re: Gear on display

Post by Spunkster » Wed May 01, 2019 4:56 pm

Make sure you have the correct gear ratios selected in the gear compensation tab.

autox19
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Re: Gear on display

Post by autox19 » Wed May 01, 2019 5:07 pm

Ok. But not sure what that would have to do with gear selection when there is nothing from the trans to the ecu.

Odie

autox19
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Re: Gear on display

Post by autox19 » Wed May 01, 2019 5:12 pm

Unless..... it takes the vss and the rpm going back through the gear table to figure out what gear it is in.

Very cool..i will try that when/if it stops raining. (Not a wet weather car)

Odie

crluver123
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Re: Gear on display

Post by crluver123 » Sat May 04, 2019 6:05 am

autox19 wrote:
Wed May 01, 2019 5:12 pm
Unless..... it takes the vss and the rpm going back through the gear table to figure out what gear it is in.

Very cool..i will try that when/if it stops raining. (Not a wet weather car)

Odie
yes that is all the ecu uses to determine gear: VSS compared to rpm, using algorithms determined via the gear ratios and final drive ratio.

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