Shifter position is what mechanical position the shifter is in. ( You could check this by probing the shifter wires by removing a plug from the trans computer. I believe the attached chart to be accurate. )

Requested gear is what gear the trans computer wants the trans to be in at any given moment.

Actual gear is what gear the trans is currently in.

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That is some seriously useful info, thank you very much! I will snoop around this weekend weather permitting and post results. Cheers!

__________________
-tp


1990 300SE "Corinne"- 145k daily driver - street modified differential - PARTING OUT OR SELLING SOON - PORTLAND OR. AREA - PM ME FOR DETAILS
1988 560SEL "Gunther"- 190K passes anything except a gas station
1997 S420 - 265k just bought it with a rebuilt trans. Lovely condition

So, I still haven't come up with a good scanner but I will probably take the car to a different indy to get their thoughts on it. Meanwhile, I compiled a little table showing how and when the car acts up. Maybe this will inspire some ideas in people who may have seen this before...

Symptoms seem to be very much tied to engine temp. Perhaps some sort of sensor is to blame? I theorize that problems start once the engine warms up enough to enter closed-loop mode.

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__________________
-tp


1990 300SE "Corinne"- 145k daily driver - street modified differential - PARTING OUT OR SELLING SOON - PORTLAND OR. AREA - PM ME FOR DETAILS
1988 560SEL "Gunther"- 190K passes anything except a gas station
1997 S420 - 265k just bought it with a rebuilt trans. Lovely condition