02-17-2017 12:21 AM
You could also have a problem with not having a good ground for the negative wires to the transformers. Take a look at the 3/8" bolt on the right front of the engine where all the negative wires from the transformers come out to something that looks like a battery ground lug. This lug is on that 3/8" bolt on the block just below the front cylinder head. If that lug doesn't have a good connection to all the wires, the ignition for all the bad connections won't fire. I have had to unsolder that lug, clean it up and resolder all the wires back into the lug.
02-16-2017 11:38 PM
Yes, you could still have a bad buffer on cyl 5 since that is the first cyl in the fault code chain. In stead of buying a new buffer, I would swap the buffer on #5 with the buffer on #11. I am thinking that the #5 buffer is bad so by putting it last in the series, the rest of the odd bank should fire, with #11 cyl only showing the fault 511-09. If this works, then replace the #11 buffer with a new one and you should be problem solved.
Also remember that the firing signal going back to the ECM for #1 is by itself as a reference. The signal for all the other cyl return to the ECM on the other signal firing circuit.
02-16-2017 10:56 PM