pcmhacking.net

Hello all

Just fitted a largeish cam to a 93vr 5ltr and grabbed VL400's nvram board and antus tp5 plugin for tuning. Ive sussed out some of the maps to get it to start and idle ok. Its only pulling about 60kpa of manifold vac while idleing so im not quite sure where to set IAC - Idle MAP Threshold Vs Idle RPM. It seems to hang in the idle while rolling down the road (increased IAC steps) then decays out when stopped.

Also is idle fueling controlled off the main ve table via Idle fuel param - VE table filter coefficient at idle? Or is it controlled by another map?

I have attached a starting log still a bit rich just need to trim it back some.

Thanks
Drew

idle fuel will be off the main VE table, the only change is after the time out which is normally 20 seconds it will switch to the idle AFR table which is richer than the main 20-100kpa afr table. i normally change the 20 seconds to 5 but thats just me

Thanks Holden202, I'm slowley starting to work our some of the maps