INPA would not test anything with just the harness so I spent the better part of the weekend reassembling the VB and most of an hour trying to chase down a short in the wiring harness that turned out to be in the test lead.. haha
Once back together I was able to activate all the solenoids with the engine running, with EDS1,EDS4 being clearly audible when test actuated.
Today will be the 3rd day driving normally, no hiccups so far.
While in the air I replaced the fuel filter and negative battery terminal which would not stay tight.
I was unable to change the upper O-ring on the little tube that sticks in the transmission as it fought furiously being removed and I didn't want to break it and wait another week for stupid part, but all the O-rings on the solenoids and a couple on the valves were changed out for new. The old ones looked fine, if a little dirty. I was hoping to find something actually wrong with it...
add 9/30: 2 wk update, running fine and shifting smoothly
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after the cog (fail-safe mode) appears, sometimes i turn off the car and the warning cog disappears, and another occasions only with a scanner is possible to get rid with the cog.Julio, have you tried driving in manual mode to see if you can isolate if it occurs in one gear only?
The PO720 code is a bit confusing that it only occurs when you stop, as this is saying the TCM is getting in invalid signal from the output speed sensor. Why this only happens when you stop is a bit weird.
I would suggest a few things.
1. Buy a cheap ebay OBD2 cable and download Mike's BMW tools (link below). Then you will be able to see when the errors are occurring and when to diagnose better.
2. Do some test driving in manual mode. When you come to a stop, the transmission will only go to 2nd, and start in this gear from a stop. If you want to start in 1st, you will have to manually select it. The problem may have something to do with the gear being selected.