what is involved in replacing my tbi is it a big job and im not sure how theese things even work im more used to straight fuel injection so some help would be nice thanx

 

Hiya So Cal. NorCal (me) attempting the high level answer. Details will come from the advanced users of this forum.

Really, replacing a TBI on your 305 is a lot like replacing a carb on a NA vehicle. In fact, if you wanted to you could replace your TBI with a carb provided you changed out your intake and did something (like remove) with your ECM.

I think you can get a TBI service kit from any of the auto part retailers that runs around 30-50 bucks. I would look at doing the service kit unless you know that the TBI itself is just bad. It's amazing what some new gaskets, seals, and cleaning can do for a component.

 

ok what is the main diff between tpi and tbi and im not even sure wich one mine is does anyone know i have a 88 sc camaro its a stock 305 engine anyone know what one it is

 

I suppose it could be either.

TPI is quite different. It looks like this:



TBI looks like this:



Both sit on top of the motor. The air filter is the biggest give away. TBI's have a round kinda thing on the top. TPI air filters will be rectangular and located in an air box above (or near) the radiator.

 

thanx alot that helps yea mine is tbi

 

Why do you need to replace it?

 

Once again Bron has beat me to it. I was gonna ask the same thing. Do you want to replace the whole system or the unit itself?