I have been having some strange problems with my new TBI. It seems to run out of fuel at high RPM when warm. I had some codes and worked them out. No VSS and no knock sensor mounted yet, but that shouldn't affect stuff much. It does it with or without the EST wire connected.
A couple of issues I have to run by those of you that have done this. I am using the stock tank with an external pump. I seem to have good fuel pressure all the time. The fittings on my pressure tester leak and a backfiring throttle body has caused a couple of really impressive fires while pressure testing. While testing, it held 11 pounds constistantly, even while it was stumbling and backfiring. I ran it this morning with the fuel inlet line into a 5 gallon can and it seemed to run much better before the return line pumped all the fuel into the main tank. Before I yank the tank, has anybody run a TBI from the main fuel outlet using an external pump without problems? I have to think so. Was the tank different for the F engine on my 74?
Secondly, I might be having a problem from my intake. It is a Holley Dominator with a square bore to spread bore adapter, then a spread bore to TBI adapter. It's getting pretty tall and might be causing my problem. I would think it would not run well at idle and better at high RPM that way but... Before I change to a regular TBI manifold I could use some input.
Thanks
A couple of issues I have to run by those of you that have done this. I am using the stock tank with an external pump. I seem to have good fuel pressure all the time. The fittings on my pressure tester leak and a backfiring throttle body has caused a couple of really impressive fires while pressure testing. While testing, it held 11 pounds constistantly, even while it was stumbling and backfiring. I ran it this morning with the fuel inlet line into a 5 gallon can and it seemed to run much better before the return line pumped all the fuel into the main tank. Before I yank the tank, has anybody run a TBI from the main fuel outlet using an external pump without problems? I have to think so. Was the tank different for the F engine on my 74?
Secondly, I might be having a problem from my intake. It is a Holley Dominator with a square bore to spread bore adapter, then a spread bore to TBI adapter. It's getting pretty tall and might be causing my problem. I would think it would not run well at idle and better at high RPM that way but... Before I change to a regular TBI manifold I could use some input.
Thanks