I recently had some trouble with my 93 blazer. I had no fuel pressure, so I changed the pump. I used the old delphi pump that I had switched out last year when I thought it had gone out. anyways, I now have fuel pressure. I dont know how much (i just did the squirt test). it wouldnt start at first (only fired a little bit when floored) so I unplugged some stuff and it turns out the coolant temp switch was bad so I changed that out, I also discovered that there was a leak from somewhere in the passenger side intake. I changed the fuel pressure regulator thinking that could be it. I took the spider injector out and the injectors are a little loose in the body and they are wet around the stems. could this be where fuel is leaking from? it runs as of now, drove it a little bit and it uses ALOT of fuel and it smells pretty rich. I always got great economy before. and now I'm a little stumped about what to do next. suggestions?

 

from looks,Looks like this spider is baaaad. you got some wet spots on driver side too. Rock auto has em for 150 bucks. swap it out with the line kit too. stop by autozone,or orellys and borrow there fuel test kit. its gotta ping 58-60 at key on,and hold above 55 for 10 min.

 

last time i replaced a regulator it was set to 90psi (which is way to much), grab a fuel pressure tester and check it

 

so I've been driving it in this condition since my last post. and in doing that I've got two basic symptoms, running rich and erratic idle. will a new injector fix this? this car sat for 5 years, ran fine (except for the bad gas) but once i burned all the bad gas out it was great, untill it didnt. anyhow the injector you mentioned, rock auto has a few, what one is good? is AIRTEX / WELLS 4G1128R any good?

 

NOO! Delphi or Delco only unless you want to replace it again.

 

pleasssse stick with ac delco or delphi.