Working With Diagnostic Data Cable & Software

[katflap]

@ spuzvica,

Just passing through & read your post.

I noticed in your video you have the 'IACV lost step' illuminated, this should not be.

see post #168 for some reference.
Try resetting the ECU to clear this

One idea I've read is that this can happen if your battery is not so good & is low on voltage (below 10v) during cranking or perhaps a slightly intermittent power supply or 'earth' to your ECU or stepper motor.

intermittent ECU power/earth could also explain your bad connection to PCHUD via the diagnostic port.

Regards