0300, 1153, and 0141 codes for 97 RS 3.8l

my 97 camaro was running rough, rough idle, and rough acceleration and i thought it was due to the leak in my intake gasket but i took it to autozone anyway and it threw codes 0300, 1153, and 0141 which i found to be random misfire and two different o2 sensors. well before i could get it fixed, the problem went away. a few weeks later, i went out to my car to leave and it wouldn't start. i finally got it to start by giving it some gas but it dies the second i take my foot of the gas. would the bad o2 sensors cause it to do that and is it intake gasket leak related? ive never had this issue so i dont know what to do. please help me help my baby :banghead:

Did you clear the codes, and did they come back?

The first code was a misfire...does the car misfire under a load?

Second code is for the heater circuit to the O2 sensor after the cat...which means it's taking longer for the O2 sensor to transmit data because it is not heating up fast enough...

The third code, is for the O2 sensor before the cat, coming out of the even numbered cylinders.....

Why do you think, you have an intake leak?

Also, are you losing coolant?

When the car won't start, disconnect the MAF sensor and see if it will start.....

Also check the vac line to the f/p regulator for fuel....

Another possibility is the IAC is not working properly, or the pintle and passageway is gummed uip, and the throttle plate and bore could be gummed up, too....