MSefi.com read only forum (Jan.15,2018)

I have an odd problem. I am running a Megasquirt II v3 with a relay board running 8.86 code. Bank 1 of my injectors gets no gas. I can get the car to start on 4 cylinders using bank 2. The car is a 472 Cadillac V8 with a 1975 Cadillac port injection manifold. It has low impedance F2 (factory) injectors. I am using an HEI with vacuum advance. The Megasquirt only controls the FI. I recently built the Megasquirt but bought a preassembled relay board. I can not figure out what could cause 1 bank of injectors not to fire. I initially had an alternating injector sequence. Then I tried simulaneous, no change. I noticed the R15 0n my Megasquirt board looked burned. It was the only component burned. I replaced it with another 22 ohm resistor. The original burned resistor measured 23 ohms. So I don't suspect that this resistor was causing a problem. The spark plugs on Bank 1 are still clean. The bank 2 plugs are wet .Has anyone had this issue or does this ring any bells as to what would cause 1 bank to not work ? BTW, the fuses are all good. Thanks. Dan

Hi Lance, thanks for the quick response. For starters I am running the 2.886 code. (I am getting confused with multiple IOSs that I deal with on a daily basis with my job !) As for Q9 and Q 3 - I have infinite resistance (no continuity) between the mounting tab and the heatsink. At time of assembly I did have the 60k ohm resistance without any modifications.One thing I did notice is that Q14 has continuity between 2 of the pins, the center pin and the pin that is nearest the rs232 connector. I scraped the area between the pins. I put the computer in the car again and noticed the voltage on bank 1. I started the car and it works ! Thanks for helping out. I lightly burned my finger in bank 1's header tube ! yeah baby !!!! Now to stop it from running rich ! Dan