94 E320 with 122,000 miles.
The diagnostic tester returns 26 flashes.
Arthur Dalton's reader returns:
1 flash at pin 6
1 flash at pin 7
1 flash at pin 8
11 flashes at pin 14.

Can anyone point me at the problem(s).

regards,

Mark

http://www.peachparts.com/shopforum/showthread.php?t=107630

Check the end play on the throttle cable for a little slack .[11]
..and do a search on "shift delay" for 26

Issue 1. Cleared CEL, and added a little slack to the throttle cable. All's well after driving for a few miles.

Issue 2. Will let it sit overnight in an un-heated garage, where it should reach about 40F overnight. Tomorrow morning will see if the delayed upshift works or not.

regards,
Mark

< >>

No need to wait if you take the control command out of the equation..

By simply unplugging the "in "vac line to the SOV behind the booster and plugging the out line [ green to tranny] into that line, the car should delay shift regardless of temp or computer mapping inputs You have simply brought straigt vac to the tranny shift delay actuator manually.
If it delays then , it is an electrical control problem [ SOV, ECU, CT, etc]
If it doesn't delay, the element/actuator is suspect [ and more probable..]
This is a good diagnostic tecniques as it splits the working system at the
electrical/mecanical "sweet spot.".....................

The 8:30am temp inside the garage was 46F. Started car, into reverse to move out of driveway, taking maybe 30 or 40 seconds; into drive, and no issues, no CEL, nada. Drove around shopping for the necessities of the coming week, several stops, re-starts, and the CEL never as much as blinks after the engine starts. Could it be the on-board computer is subject to hic-ups similar to those we often experience using our PCs? Or maybe trouble is brewing and I'll return again to ask for help.
regards,
Mark

The question is " Did it delay shift or not ??? "

It did not, and I don't recall a delay shift at all this winter as it did previously; and I really prefer it this way. Can this be bad?
regards,
Mark

Shift delay is to heat the cat rapidly for emmissions and aide in attaining closed loop. .. that is why the code comes up on Emmissions DM led [ 26] instead of the other modules .
The problems is if the delay is not working, you will always bring up the code .
Many guys BB the line and live with code erase when it comes up.. This can take seveal weeks .
Cat heating can be accomplished by holding/delaying the shift manually w/gear shift lever when car is cold .
I do it by habit, just cuz i know the advantages of getting the car up to temp and into closed loop as soon a s possible and want a clean cat......................
The advantage to the BB's is if there is a vac leak in the delay actuator/element [ most likely], then the BB'ed line prevents the engine from having to deal with the leak.................

"Many guys BB the line"
I don't understand this. Can you explain it in other terms?
regards,
Mark

Every tech has BB's in his box !!!

You use them to block off a vac line... if you want to go back , you remove them...
Take the line off, stick a BB in it and shove it back on where you took it off of... that system now no longer activates.

Thanks,
Mark