Thread: Csx4005la
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Old 02-23-2009, 08:45 PM
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Join Date: Jan 2009
Location: Las Vegas, NV
Cobra Make, Engine: Shelby CSX4005LA, Roush 427IR
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Default Why it runs rough

So my friend said "find the scanner port and bring it up" to see if there were any codes. Well, it's not that modern. So he recommended I take it to the local Ford dealer (where I get my Mustang worked on) to see if they have the old style stuff (they don't any more either ! ).

Their diagnosis is ignition. One of their old time guys (who is older than me) sent the kid in to get a temp meter. It's missing on 3:

0 0
0 0
0 x
x x

(top is front , left is drivers side).

This car has three controllers. The basic fuel injection controller is Roush but the others are Accel. They suggested just bolting to a MSD, changing out the plugs and wires and starting over. Thoughts?

Here's what is there:

O2 sensor:




Ignition controller:





Note that to get to the distributor the fuel rails have to be removed (or at least, moved). I will also add a fuel pressure gauge. I've seen them internal in the engine compartment although I might consider switching an oil temp for fuel pressue gauge if one was available. Wow, the mod opportunities abound. I could make it a supersnake and add a Paxton too. After driving it for a couple of weeks I'm not sure 550HP is enough






Roush fuel injection controller. EFI by DFI (Is that Accel? It seems to be in their trademark on the other components.)





Also, I was looking at the pictures of the engine on the Roush site and it says it has a powder coated oil pan and the capacity is 8 qts. When we changed the oil last Friday it took 11, and the pan is aluminum. I'm still trying to figure out exactly what "mods" have been done, but apparently this was changed for some heavy duty use.

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