Help! I have a 92 s10 blazer 4.3 CPI W series. Took off at a green light and it acted like starved for gas ...sputterd and died. Now it will start and run until warms " in closed loop" then acts like it's not getting fuel and dies. So I let it set and cool down in shade and it will start and run fine until it warms up again. I am getting 55 psi on the fuel line going in to the CMFI . So, there is gas getting at least to the central gas line of the multi port injecters. My Sunpro code scanner shows no errors from the sensors ect. Does anyone have any ideas? Thank you for any help

mike

 

Try this link to s-series.org for more information....


http://forums.s-series.org/viewtopic.php?t=2278

It deals with the CPI unit in the upper intake manifold which if it fails sounds like your problem...