I just put in an lt4 knock module today and the car started missing really bad and died the first time the second it started missing but stopped and hasn't done it since was it supposed to do that or what its kinda got me scared to run it now.

 

Make sure you didn,t pull any of the wires loose on the PCM. Kinda tuff to do that just installing a KM but check and make sure all the connections are tight.

 

could be just the computer coughing since you had the ecm unplugged (i assume) and that cleared all the "learned" info in the computer.

usually when i clear the codes or pull the battery terminal while doing mods, it will not run as smooth the first few minutes...

just a thought

 

today the service engine soon light lit up now it won't go away the car also says it is low on coolant but it is full but it was already doing that before for a couple of months now so it must be the knock module.

 

the car is a 96 z28

 

so far i don't think there is one since mine isn't doing right