I pulled the codes on my 94 150. Im getting code 211, 311, and 632. Code 211 is the one im most concerned about right now. It says " two or more PIP pulses occured - possible ignition miss or stall". In the Hayne's manual it says to run through a series of tests to help isolate the problem. It says to "disconnect the EEC-IV PCM from the PCM." This is where im getting throw off. I dont know where to find this connection to continue with my diagnosis. If anyone knows where this is located or has an exploded view or diagram, that would be awesome.

 

I would understand that as *unplug the dist. module (TFI module).
Phillip