I have a 4.3 V6 1993 s-10 blazer. I have replaced the fuel injection spider twice before and the truck is giving me the same symptoms as the last two times. The first time I replaced it with a delco part lasted around 2 years, this last one I replaced with a non delco part and it lasted around 5 months. What can I do to keep this from happening. If you have any information that would be great.