E67 and VSS - Removal of the TCM for manual transmission

[S10Wildside]

I'm using a VSS from a T56 transmission and spinning a reluctor on the bench top. The 158 mph value is odd because it is displayed with VSS connected and without TCM connected. Once the TCM is connected SAE.VSS goes to 0 and properly reads VSS.

Calibration at http://www.eficonnection.com/temp/Sm...zerSS_0002.tun. (EDIT - So that's odd. You cannot download this file. How do I post the file?)

The conversion is an LS3 going into an early (80s?) BMW.

[S10Wildside]

what do you see the vss ppm out signal C1 39?

I'm curious about this as well, but don't have an instrument cluster on the bench to know.

[alan91z28]

I'm curious about this as well, but don't have an instrument cluster on the bench to know.

do you have an oscilloscope or fluke frequency capable meter that you could look at the signal? i use this E67 output to a cable-x box in my iroc to drive the mechanical speedo

[S10Wildside]

do you have an oscilloscope or fluke frequency capable meter that you could look at the signal? i use this E67 output to a cable-x box in my iroc to drive the mechanical speedo

I do. Not sure if I'll have a chance to bench test that this week.

[schwoch1]

Anybody come up with anything on this yet?

Mike

[S10Wildside]

No, nothing. The harness, ECM, and TCM have been delivered and will soon be installed. My customer requested to proceed with the TCM. If he runs into any problems related to VSS or TCM without automatic transmission, he will rework the harness to add the VSS to the ECM and move forward from there.