hav a 93 rx7 tt (auto). After a hard run of over 240 km/h, it was all o.k.!! But once i reach my home and parked my car, the rpm went around 200??? felt like the engine was going 2 die!?! I tought the MAP/boost sensor line popped off, coz I experience it b4... but when i pop the hood and check the line... auch... HOT!!! but it was all o.k. The next morning I started the engine and heard a big whooosshh from the engine bay! other symptoms are lack of power at low rpm, especially uphill. Could it be a broken seal? a gasket leak? No smoke coming out from the exhaust tho... HELP!!!

 

I've put my car 2 the mazda dealer for almost two weeks and they havent even know what's wrong with it!!! HELP!!! They've said the injectors were cloged so they service it... and also they change the spartk plugs bcause there were carbon buildup... but it didn't help anything! The engine still idle strangely... Any advice? Plzzzz