E38 and aftermarket speedometer settings
I'm not sure why I haven't run into this before, but I'm having trouble getting the speedometer to do *anything* in an L99 swapped classic. Many of the e38 swaps I deal with use OBDii interfaces for the gauges, this one is using Dakota digital VHX which utilizes the single output wire from the ecm into their box. I've done this several times with LS1B ecms so I am familiar with the gauges themselves but for whatever reason this e38 is giving me issues.
There is a single signal wire going from ECM X1 pin 57 like everyone says to do. I've tried basically every combination of settings within reason on the bottom 6 setting boxes. Searching has turned up very little.
2010 Camaro L99 E38 with 6L t43, all stock engine and trans. Aftermarket harness and wiring and pins have been verified. I can watch speedo data on the scan tool so the info is getting into the Can-bus I just can't seem to get it out of the ecm and into the gauge.
Reply With Quote