My son's car is a 92 Diamante LS 3.0 V6 with Dual overhead cams. It in mint condition EXCEPT the automatic transmission will only move the car in reverse and 3rd gear. Fail Safe Mode?
The dealer says they can't diagnose anything until he buys a new computer for it. (BIG bucks!) ie their computer can't read HIS computer,
He has reset the ECM but now what? Isn't there a simple (and cheaper) solution????
Sawdust Patty