startingstock

iTrader: (3)

I have a 383 sbc that i have a holley terminator on. I have the v4 software and i have been slowly tuning and logging. I have been going in the right direction according to the data logs. It drives perfect except! Cuts out at 5k rpm. My log shows 13.4 afr at the cut out. I know thats lean, but is that lean enough for a misfire? Commanded afr is 12.8 at 95 kpa and 5k + rpm.

pantera_efi

iTrader: (1)

Hi SS, I was giver this same report by Doug Flynn (Holley) AND other users.
His/My "fix" was to change the Coil to the IGN-1A.

My tech helped him, I thought this was cured by the Version 4 Firmware.

The new firmware has MANY more Dwell Control Objects.

SO I ASK for the "dwell" report ?
SO I ASK for the TW tooth count ?
SO I ASK for the Coil Fitted Part # OR GEN - x ?

Lance

startingstock

iTrader: (3)

Msd Hei. Computer cotrols fuel only. Im getting spark. #2 plug looks bleach white, like its not getting correct fuel. I have a dual plane airgap. Dont know if this is the issue. But is 13.4 afr lean enough to cause a misfire at 5k rpm?

pantera_efi

iTrader: (1)

Hi SS, Doug Flynn reports UEGO failures (burned out) with the newer harness made by a NEW vendor.

Your neighbor Dave Hartz, Water Thunder, reports the same. (Melborn)

Lance

LilJayV10

iTrader: (39)

Shoot me a PM and I will see if I can help you get this sorted out.