G 74F 00

iTrader: (2)

Hi i have just bought a moondust saph 4x4 and some d**k has been playing with the fuel pressure and it is over fueling really badly.
Is there anyway to restet the fuel pressure reg back to its standerd setting? Other than putting a guage in line?
Iv also been told that the previous owner had been messing with the mixture screw on the ecu. Is there anyway of putting that back to a standered setting? Or is the only way i can sort it, by puting it on a gas tester?
Thanks!

tabetha

The rail pressure needs setting first, it is 100% vital to be correct, and must be done with a gauge.
The mixture screw can be reset, I think it's turn it 5 times counter clockwise, then 2 turns clockwise, but I'd check with stu/msd as not terribly sure on this point.
tabetha

G 74F 00

iTrader: (2)

Ok thanks tabetha when you say to turn 4 turns anti clockwise and turn twice clock wise do i start from when the screw is turned fully clockwise? (all the way in).
Am i right in saying the fuel pressure should be 3.5 bar on tick over with the vac pipe disconected?
Thanks for your help!

tabetha

Is it chipped to start with ?, if so if it is a msd chip phone them with the number and they will put you right on settings needed.
As I said I'm not 100% sure on the ecu adjust as don't use these ecu's anymore, and my ecu doesn't have a mixture screw.
Fuel pressure is indeed std at 3.5 bar idle with vac pipe off and pipe plugged, with vac pipe plugged back in it will drop to around 3 bar.
tabetha

G 74F 00

iTrader: (2)

ok thanks tabetha havent checked the chip yet but it will be uprated. its running dark greens t34 bd 14 inlet and exhaust. will check what chip is in there later today. how do i tell if its a msd chip?
thanks