View Single Post
  #4 (permalink)  
Old 06-30-2007, 01:45 PM
Velox Velox is offline
CC Member
Visit my Photo Gallery

 
Join Date: Oct 2006
Location: Des Moines, IA
Cobra Make, Engine: SPF 545" stroked 460 - sold
Posts: 239
Not Ranked     
Default

Hi Steve, glad it started up for you but sounds like it isn't running right the biggest install problems are air/vacuum leaks so you need to go through every inch of the install and check your connections, vacuum lines, injector plugs, wiring connections, and all hoses and then make SURE you cap off the vacuum line to the fuel pressure regulator and then adjust the fuel pressure as best you can at or near idle to 40 psi (or whatever your manual says, and this has to be fairly close, as it will not run right with fuel pressure set wrong) then reconnect the vacuum line. The timing is a big factor at this point in problems with running smooth on initial start-up, you have to be sure that you installed the dizzy correctly to TDC with rotor at number 1, and if so, then make SURE you have disconnected the SPOUT wire at the dizzy before checking timing - check your manual, the SPOUT connector is right near the the harness plug in to the dizzy. You CAN NOT set timing unless the SPOUT is disconnected, as it controls the electronic timing through the computer. Once timing and fuel pressure are set close, you should then be able to achieve a reasonable idle, bump it up if needed with the idle stop screw on the primary linkage arm. After that the computer should smooth it out, gets better each time it goes through a run cycle (start, stop, restart) as it will "learn" to some extent each system fairly quickly. If you still can't idle well with correct timing and fuel pressure then something is set-up wrong, maybe recheck firing order plug wiring etc. The next step if all that fails then is to run it for a few minutes at fast idle as best you can, shut it down, then go back through the procedure to read any error codes the computer may have stored after the initial start-up, that will tell you more info. Chris at Mass-Flo is real good about walking through any problems and getting it right, he is prompt with email and call-backs, a terrrific resource. Good luck!
Reply With Quote