What do i check to see why it wont go into closed loop?Temp was showing 185 degrees. please help

 

O2s have to be hot enough, as well. That can be a problem with 93s, since their O2s are not heated. Got any mods that might come into play? I don't see any posted or a signature.

 

its a 93 Lt1 with a hotcam svo injectors ,AFR heads,ati procharger,intercooler,The car was working perfect and i got on it and it spun quick and i hit the rev limiter for a few seconds and its been messed up since then.

 

How do you know its not going into closed loop? What are the O2's doing?

 

I have a snap on scanner.The scanner says its staying in open loop.The o2 sensors are just hanging around the upper 400s.all sensors dont seem to be moving much.

 

If your O2 sensors are holding steady near 450mV, they are not working. You either have an open circuit on both of them, or they are not warming up at all. The ECM will not go into closed loop when it knows the O2 sensors are not working.

 

i am not doubting you but it seems funny that both o2 sensors quit at the same time.

 

You told me they were both stuck at high 400's. I'm telling you that if one or both O2's stay static, the ECM will not go into closed loop. You can question that all you want.

Good luck

 

check for burnt o2 wires