Tech Support Forum - View Single Post - 1996 chevy s10 4.3L v6 loss power high rev

**Raylo** · 05-08-2009, 10:26 AM

If you decide to test fuel pressure make sure you look up the actual spec for fuel pressure for the type of injection you have. Those motors came in 2 versions..... CPI and TBI and the pressures are very different. CPI spec is about 60 psi and starting and performance is very sensitive to pressure. TBI runs a lot lower pressure and I believe is not as sensitive to fluctuations as CPI, especially for starting. Don't forget to consider fuel filter, too, as mentioned above.

05-08-2009, 10:26 AM	#6 (permalink)
Raylo TSF Enthusiast Join Date: Feb 2006 Location: Maryland, USA Posts: 525 OS: XP Desktop, Vista HP Notebook, XP Notebook	Re: 1996 chevy s10 4.3L v6 loss power high rev If you decide to test fuel pressure make sure you look up the actual spec for fuel pressure for the type of injection you have. Those motors came in 2 versions..... CPI and TBI and the pressures are very different. CPI spec is about 60 psi and starting and performance is very sensitive to pressure. TBI runs a lot lower pressure and I believe is not as sensitive to fluctuations as CPI, especially for starting. Don't forget to consider fuel filter, too, as mentioned above.