Low Idle (Stalls On Deceleration)

Check air intake system, see TEST HU under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V (GASOLINE) article.
Check fuel delivery system. See TEST HC under SYSTEM TESTS in SELF-DIAGNOSTICS - EEC-V (BI-FUEL) article.
Check A/T Torque Converter Clutch (TCC) system. See appropriate OVERHAUL or ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS.