FiTech EFI Tuning Forum

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Severe Lean-to-Rich tip-in condition.

Which regulator does the 30012 Go-EFI 1200hp Power Adder use? I thought it was 58psi, but not sure. I have a severe lean-to-pig-rich condition that will not tune out. I Have a brand-new Fitech unit, and I have never been able to go to WOT without a bad bog. When I launched the car off idle at the dragstrip, it would fall on its face, go 10;1 AFR, and start misfiring unless I lifted it.

Also, I cannot make a data log over 30 seconds long, or the handheld will freeze up every time until I unplug it. This unit seems to be faulty. I'm getting very discouraged and about to go back to a carburetor. I have spent $1600+ on this system and cannot even go to WOT. Someone, Please Help! Thanks.

Yes, the fuel pressure should be 58psi.

I'm sure you understand that these aren't magic boxes.  Impossible to know the exact tune your engine requires.  The self learning occurs to attain the desired AFR in certain map and RPM.

Sometimes it is necessary to make adjustments in the Accel menu to attain throttle response.

As for handheld freezing up, try a handheld software reboot. Menu is hidden, must unhide in Display setup .