One problem related to crankcase (pcv) has been reported for the 1999 Toyota Camry. The most recently reported issues are listed below.
Engine blew out on freeway. Engine failure diagnosed as sludge build up leading to thrown rod and crankshaft. Rod busted through crankcase. My 1999 Toyota Camry was one of Toyota's flawed engine designs suffering from a known oil gel build up problem - -fe four cylinder and 1mz-fe v-6 engines.