im reposting cause i know there is a great deal of knowledge on here so im gunna re type my post i have a 92 4.3 cpi that will die or bogg down almost to the point it will die when i give it gas but it idles great
i have replaced
plugs,wires,cap,rotor and yesterday the coil test the icm it passed
the fuel pump fuel filter and fpr and all the sensors on the plenum
i thought my cat was cloged so i cut the exhaust half way threw the pipe is that enough? or should i pull my o2 sensor
is there any way to test the spider injection to make sure its working properly i hate making a payment on this when i cant even drive it
what does the sensor do thats underneath the vortec piece

 

You already started 2 threads on this subject which is against the Forum rules for double posting. I have removed one of those threads and am locking this one. Anybody wishing to reply on the issue you are having may do so in this thread.