so i just built this 406 Brodix 200ik heads,comp XE284 Cam, SuperRam, 30lb svo injectors.. It started right up and I broke in the cam np..Was running alittle rich on breakin but not to bad. After breakin I had to reinstall the inner valve springs( checked the lobes on the cam and they are fine) and noticed I burn up to spark plug wire.. I replaced the boots on the wire and checked them for continuity and they are fine now... On the next startup it was it was dumping out a ton of black smoke and running like a pig and stalling..way rich!! I did the breaking with the ARAP bin in the computer it was still set for the 22lb injectors then uploaded 30lb to the bin..I also check my fuel pressure and its around 45lbs... I pulled the plugs and they were soaked in fuel cleaned them up and put them back in.. I havent restarted since cleaning up the plugs but sure it will run rich if i try.. I check codes in im getting a "code 12" " looked it up in a haynes repair manual and it says "Engine Lacks Power" with the following possible causes..1. Inncorrect timing 2. Excessive play in distributor shaft,wore wire,rotor bad cap,..3. inncorrest gap on plugs..5.Carb not adjusted properly or excessively worn.. afew other things were listed but seemed way off
So The only one im leaning towards is choice 5..I dont have a crab but I'm thinking my bin file in my ECM my have my fuel settings way off? All my parts are new in the igntion... HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

I'm leaning towards thinking my bin might be the problem but not sure.. what bin are you guys running with a similar setup???

 

ECM code 12 is not actually an error code. It simply means that the ECM is functioning correctly. You should have change the fuel injector constant to 30.0 from the very beginning. Now that your Eprom is programmed with 30,,, simply disconnect the negative battery terminal for 2 minutes and connect it back up. This will reset the fuel correction terms (BLMs) all back to 128 which is base-line. Start the engine up and data log the BLM values. See which direction they move. If they go above 128, then the ECM is adding fuel to counteract a percieved lean condition. If the BLMs drop below 128, the opposite is true. Once I have set the fuel constant to the correct value, I tune the MAF table in order to achieve BLMs between 124 and 132.

EDIT: after running some numbers on the calculator, the correct fuel constant for you is 32 #/hr, this comes from the fuel pressure being at 45psi and that the Ford injectors are spec at 39.5psi. Now, I have been in an arguement for years on this matter with another board member here. However, I use to work at Ford and sat next to a fuel specialist. He and my Ford Parts manual state the same thing, injectors are rated at 39.5 psi.