Hey Guys,
I have a 1992 Rs Camaro V8 305. It starts up great the first time but has no acceleration. Then when you stop giving it gas it stalls. It then is really hard to start again. You can press the gas as hard as you want and it doesn't go anywhere. Just zero acceleration. The engine seems to run hot too. The temp gauge shows its fine though. I replaced the fuel lines (they were rusty) the fuel pump and fuel filter. The injectors are fine and the injector filters are fine.The spark plug lines are fine too. The engine error codes i get are 23 and 33. What is wrong?

 

code 23 is for your air temperature sensor, and 33 is manifold absolute pressure (MAP) sensor. For the air sensor you might need to replace it and the map can be the sensor or a vacuum hose thats bad or loose. 1982 – 1992 ECM Trouble Codes For Camaro & Firebird | IROCZONE.COM | IROC-Z Forums, Photos, Videos, History, Information, and more.

 

Sounds to me like a plug Cat.

Engine should run in LHM if it was just a sensor.

 

ill second the clogged cat. drop the y-pipe and then start it up and see if it solves the problem. if so, replace or remove the cat if allowed

 

Check your thermostat, try to get one that reads at 180 degrees even if oem says 190 or 195.