Can´t get idle ls3/480

[Bert-Ola]

Hello,

I can´t get this GMPP ls3/480 to idle.
Installed in 1999 corvette using original MAF and MAP.
Engine runs but as soon I let of the pedal, engine stalls.
Any tips?

[Bert-Ola]

My fault, I got it running with more desired airflow up to 12 Grams/sec.
Runs a bit lumpy, but it stays around 1000 rpm.

[joecar]

Now: set injector tables, correct VE and MAF tables, do RAFIG.

[joecar]

Are you running the LS3 from a Gen3 PCM...? If so are you using the LPE 58x/4x -> 24x/1x converter...?

[Bert-Ola]

We are running the original LS1B PCM on a GMPP ls3/480.
LS2 throtlle body
LS1 knock sensors
LS1 MAP sensor
LS1 MAF sensor
24x/1x reluctor wheel on crank

[quik95lt1]

little heads up for idle help with bigger cams, less timing at idle and more air, they have less tendency to stall like this when getting load at idle from power steering, ac, etc...