Hi guys, I was running my TPI (soon to be Stealth Ram after this week) with no VSS before because I have a 1964 Muncie M20 4 speed. I finally purchased the VSS conversion kit from Jaguars that Run this week. The bin I am running I started from a fresh factory bin and have about 30 burns on it, but I had someone w/ Tunercat "turn off" VSS for me a while ago so I wasn't throwing a code 24. Can anyone tell me how to "turn on" VSS again" using Tunerpro? I saw a few references to VSS diagnostics in the notated 6E aypy bin but am not sure what Tunercat would have touched. Is it likely that Tunercat just turned off VSS diagnostics and that the VSS will still work if I connect it and don't change the bin?

 

Woops, never mind, my friend already turned VSS back on using Tunercat. (although if anyone does know how to manually enable/disable the VSS diagnostic flag I'd still be interested in hearing how)

 

I had to disable it in my truck to keep the SES light from turning on (until I can afford a JTR conversion, since I have a mechanical speedo)

This is in TunerproRT, regular tunerpro should be the same or similar

Go into tunerpro, open up the .bin for your prom and the .ecu definition for whatever ECU is using said prom.

In the "flags" window there are going to be a few options for "Malf flags xx thru yy"

Open all dialogs for malf flags and find whichever ones start with VSS. For my truck it was VSS24, should be same or similar to that depending on the ECM you are using.

Click the checkbox next to it to turn it on/off

File --> save as, yes to recalc checksum. Close tunerpro, burn chip, install in ECM.

 

Yeah see the 6E in tunerpro does not show a VSS flag.