ECM going out?

If you can post all of the specific codes you have set, it would really help to diagnose your problem.

When was the last time you had the battery and/or charging system checked out. Including bad or loose cable/wire connections. Low voltage will cause the ECM to go crazy and cause all sorts of problems.

I had the same problem a while ago....

Do you have a chip in the ECM?

The reason I ask is because the shop that originally tuned my car didnt tape the diablo chip in the computer. It would move around and reset the computer about 2 times a day. All kinds of wierd crap happened. Would die on the interstate, then fire right back up. All I had to do was tape the chip again.

I hope that is your problem as it is an easy fix. Hell, even if you done have a chip, check the connections to the ECM.

What's the PID reading for the differential pressure feedback sensor? If it is greater than 4.5 volts it will hard set a hard fault code. This can happen when the DPF sensor curcuit is shorted to ground or power, usually power.

Additionally the 3 coil related codes you got are also normally set when either the ignition circuit or the coild driver circuit are shorted to ground or vehicle power.

I would start by checking the PID values. On the FLI (fuel level indicator) circuit at a 1/4 tank the value should not be below .90 volts, at 3/4 tank the value should not be above 2.45 volts. If these values are within those parameters, then the FLI sensor and circuit are probably OK. If not, it may be a bad sensor or more likely a short to ground or power.

Do the same for the DPF EGR sensor. The PID should not be greater than 4.5 volts at key on engine off.

If all of these PID tests pass, then maybe there is a possibility that you have a damaged or chafed wire creating the short.