computer is popping up code 13 one long flash and 3 short ones car started running like crude no power and it cuts out at 4000rpms everytime but goes away as quick as it comes the car is a 91 LS ANY HELP WOULD BE GREAT

 

The thread for ECU codes can be found in the FAQ at the top of the forum.

 

Look into investing 200+ for a new MAP sensor my friend.

 

^^ or pull one of a motor thats in a car in the junkyard (and hope its not fried)