my 95 blazer is having problems i cant put alot of pressure on the gas peddle other wise the truck will stall. they did a pressure test replaced wires,rotar,and cap can anyone explain what might be wrong before i have to replace the spider which is big money.

 

What were the results of the pressure test?

Try removing the pre-cat O2 sensor completely from the vehicle and see if it runs any better. If it does, then your catalytic converter is plugged.

 

thanks for the input ill let u know