My COMPUSHIFT is acting erratically. What could cause this?

Poor wiring causes many problems we hear about. We have seen painted bolts used as frame grounds, 18-gauge wire used for power, and rat’s nests of connectors in between.

The solenoids and sensors in the transmission require a few amps of clean power to run properly. Make sure that you use soldered connections wherever possible. A dedicated connection to a switched ignition circuit is recommended.