Members Page/Peter Jensen/Audi S Display

are you sure it's wheel-error ? Does the red lamp say "trigger" or "wheel"? Check the log. The right-bottom corner is normally misfire, it might blink on slight misfire.

How can that be and why is lamp blinking When the car seems to run well?
- Misfire measures the RPM change between tooth, for each event. You can check the individual cyl power numbers in the log to get a better picture. Will falsely conclude misfire if a tooth is placed 1 degree off ... which is otherwise unnoticable. If a cyl (or cyl-pair for an even-fire) always seem weaker/stronger in the log, it might just be a small harmless tooth-position error.
My vote is on missfire again, but experienced that "missfire" flag in megatune also able to blink when compression in cylinders differs and idle is a bit rough. To test: pull an ignition wire and spark it outside the engine. -Check whether the situation gets worse or not... (GergelyLezsak)

I have made connection to GND so the cable is now shielded, no difference.

2007-09-24

LCD question. I get some kind of rubbish on the display when the engine is started (see image) and when only ignition on there is no problems.

I use rs 232 cable fore connection and ca. 1,5 meters I length.

The plan worse to mount the display near the rear mirror at the roof so is there anything I can due to get rid of the noise?

[dnb] This looks like you haven't got the LCD cable shielded well enough. Make sure the shielding on the LCD cable is connected to the D connector on the connector, and that there is a good ground plane for the shielding all the way back to the ECU. (There should be, but it never hurts to check) Also, remember that shielding should only be grounded at ONE end.

[GergelyLezsak] Missfire also worth a check. Even very slight missfire could lead to scrambled display in my experience. (With shielded LCD cable grounded to the ECU)

Bad

Good