cossiesimon

Hi just been setting my stage 3 up on my 4x4 sapph, having a few problems though. Got a msd chip with lambda control, running not to bad at idel and cruising but at full load only getting about 17psi of boost, was peaking more on my stage1 set up. Also i have got a wideband fuel ratio gauge it gos off the scale full richness, it starts to miss and hold back at the top end. Is it running to rich cause im not getting enough boost or is it not boosting enough causing it to be rich or a bit of both? How much pre load can you put on the actuator? And how can you turn the fuel mixture screw on the ecu? Thanks for any help

Also any ideasa on what the best plugs to use are dont want to spend a fortune?

oldford

Well, one thing is for sure, there's a problem with the chip (setup to rich on medium boost) or there's a mismatch between the chip and the engine.
You can try using the co-screw but I don't think it will correct this big difference.
Is the chip mapped on this engine?
Is the fuel pressure ok?

cossie4i+

iTrader: (15)

I would just phone MSD and ask for there advice

Steve