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glaser67
Gear Head
Posts: 16
Joined: Wed Oct 05, 2016 6:15 pm
Location: Cleveland OH

Possible VSS delete?

Post by glaser67 » Mon Aug 23, 2021 7:01 am

Ran into a problem with converting my 91' F150 from E4OD to M5OD; I get the tranny, T-case, and crossmember mounted up, and there's a conflict with the VSS/Speedo cable and the corner of the front fuel tank. I cannot lower the drivetrain enough to miss it, and to move/remove the tank I'd have to pull the bed.

What are the implications of deleting the VSS? I would anticipate decel idle issues and such, but am unaware of how might affect drivability or of there's a way to compensate with the tune.

Any insight would be greatly appreciated.

Thanks,
-Glaser67
89' F-150, NA 5.0, MAF conversion - Quarterhorse w/Binary Editor, A9L, GUFB

jsa
Tuning Addict
Posts: 859
Joined: Sat Nov 23, 2013 7:28 pm
Location: 'straya

Re: Possible VSS delete?

Post by jsa » Mon Aug 23, 2021 8:59 am

Turn the VSS hardware present switch off in the tune.
Cheers

John

95 Escort RS Cosworth - CARD QUIK COSY ANTI / GHAJ0
Moates QH & BE
ForDiag

glaser67
Gear Head
Posts: 16
Joined: Wed Oct 05, 2016 6:15 pm
Location: Cleveland OH

Re: Possible VSS delete?

Post by glaser67 » Mon Aug 23, 2021 9:15 am

Will do, thanks for quick reply.

For my understanding, does this simply eliminate the function(s) that are affected by VSS input (decell, decell in/out of gear)?

Also triggers another question for the tuning community; E4OD has the shift position module which functions as a neutral safety switch, which I planned on putting in the park or neutral position and just tying up under the cab.

Does having constant neutral safety closed affect driving conditions?

I think the answer would close the loop on the manual conversion as far as electronics and the tune is concerned.
89' F-150, NA 5.0, MAF conversion - Quarterhorse w/Binary Editor, A9L, GUFB

jsa
Tuning Addict
Posts: 859
Joined: Sat Nov 23, 2013 7:28 pm
Location: 'straya

Re: Possible VSS delete?

Post by jsa » Mon Aug 23, 2021 7:16 pm

Search the strategy doc for VSS, all the implications are covered.

https://github.com/OpenEEC-Project/Strategy-Documents

Search TRLOAD in the doc. Set it in your tune to suit your transmission configuration.
Cheers

John

95 Escort RS Cosworth - CARD QUIK COSY ANTI / GHAJ0
Moates QH & BE
ForDiag

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