The CD4e ATX in our cars has many design flaws that cause early failure. Bring your car to a good transmission shop (not an exchange house) and have the line pressure, CT pressure and front lube pressure tested. If any are out of spec you can have the valve body rebuilt and updated with mods and oversize valves that will prevent the inevitable total transmission failure. The sensor mod will not prevent incorrect internal pressures from killing your tranny.
the Valve body can be change without tranny removal.
They all have it, they all need it, so get it done. Most good shops know what to do.
For now, check your fluid and slow down.
jeff
