Hi folks, I have not been on in the past year or so, my 383 project got put on the back burner after Covid and recovering from other health issues, hope everyone is well. I am not going to back up on the other issue resolutions but in a nutshell I am pulling my hair out on a surging issue from about 1200 to 1600 rpm at part throttle. My VE table is also rough. I have started from scratch several times, used Dave W's WB02 table to tune, tuned open loop, tuned closed loop, used smoothing, changed injectors and tables still wind up looking the same. Disabled EGR, PE, DFCO etc. Can someone please look at this bin? The enclosed bin is closed loop with nothing disabled. At higher rpms everything runs great and even in PE mode, I just cant seem to kick this rough spot.
I appreciate any insight, would like to get this project behind me.
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