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Truck starts but stalls out as soon as the key is moved from crank back to run, code P1300 present. I know this means that the ECM is shutting down the injector pulse because it is not seeing feedback that the engine is running. I verified the the IGF wire (B/Y) is good going from the ignitor to the ECM and today put an ignitor in the truck after eliminating a bunch of other things and still finding myself in the same spot. I have power and ground at the ignitor plug and the I can keep the truck running with the key in the run position if I spray ether directly in the intake. So my thoughts are my coil is operating properly. I don't like throwing parts at a problem but at this point I'm pretty stumped the manual says to put a known good ECM in but I don't want to do that without verifying my signal to the ECM on the IGF wire.
