Hey guys, the cars running - first 250km are now on the engine!

I've got a few questions on tuning that I could use some help on.


1. Are the air/fuel ratios supposed to bounce or remain fairly constant? Mine are always bouncing around +/- 0.3 at any given time. If not...what should I be looking into?

2. I've got the occasional stall on decel. when coming to a full stop, rpm just begins to drop and the engine cuts out. Any ideas?

3. On occasion, decel. can be really jerky, could this have to do with fuel on decel?

Thanks!

 

1) AFRs will jitter a bit.
2) Stalls on decel can be helped in many ways. Are you running ignition? BAC valve?
3) If decel is jerky, most likely you are pulling a bit too much fuel on accel, or you have the Accel threshold set too low.

Ken

 

I am running ignition, but no BAC valve, and no emissions controls

I'll try and see what I can do with the jerkyness,

thanks