First I'd like to say thanks up front for any help that can be provided to me.
About 9 months ago by Blazer started to run real rough and couldn't even idle without pumping the gas constantly. So, it sat in the driveway until recently when I finally cleared a space in the garage for it. So far this is what I have done.
- Replaced battery (old one wouldn't hold a charge)
- checked vacuum line for leaks and didn't find any
- Tested ignition coil (no problems)
- Pulled plug to verify cylinders are getting spark (checked out)
- Moved to fuel system
- Checked pressure key on engine off (60 psi, drops to zero within 5 seconds)
- Pinched off return line checked pressure (55 psi, drops to zero within 5 seconds)
- Replaced fuel pressure regulator checked pressure (60 psi, drops to zero within 5 seconds)
That's all I've done so far. Everything is pointing me to replacing the CPI assembly, however I really don't want to dish out the $320 for it. Have I missed something or should I just bite the bullet and buy the part?
Thanks again for your help everyone.