First things first. I recently bought a 1992 blazer with the TBI 4.3 and like 130k on the clock. I picked it up dirt cheap because the injectors weren't firing at all. I put in a reman. computer and it fixed it right up. The problem is, that now, one of the injectors has quit working again. it will barely stay running and refuses to accelerate faster than a snales pace. Dose anybody have any idea as to why the part of the computer that controls the injectors burning up?? could it possible be a short in the injector? Or is there some other part of the system that could be fouled up? Any help and insight is greatly appreciated.

Thanks, Bob.

 

Not an expert in these areas but you could always take the injectors to a shop and have them tested there. It's possible it's faulty and just needs to be replaced or remanufactured. Given the abundance of these parts in junk yards across the country try a used one out of a junk yard and see if that fixes the problem or not. I believe you may be able to test the leads coming to the injectors to see if they are showing current. Odds are though, you'll need new injectors.

 

try cleaning electrical connections that clip on top of injectors