i have just done my fuel lines (briaded lines, reverse flow, fpr set at 3.2 bar) now my car wont idle without hunting, and nearly stalling,,,,,

cleaned maf, boost sol, and K+n panel filter with brake cleaner,,,but shes still doing it.
dead on when shes only started (cold) when it warms up ,the prblem starts

 

have you tried re setting the ecu ?

 

yeah mate ,did a reset and came up code 22(knock sensor) i have that sorted now ,,but ill try another reset tomorrow,,,,,,thanks

 

What was the pressure before ? So if you upped the pressure, is it drowning in fuel ?

DunxC

 

When you set the fpr did you disconnect the vacuum beforehand? Normally the fpr would be set at 3bar with vac pipe off, then when reconnected, the pressure drops to about 2.6bar. If you set the prssure at 3.2 with vac connected, then that'll be the pressure at idle, and not 2.6 (or c. 2.8 in your case). Don't know if it would cause the idling/stalling probs though

 

the car was on the standard fuel setup before,so dont know what it runs at?,,

and i set the fpr at 3.5 with the pipe off, then it dropped to 3.2 when pipe connected,,,,mybe to high

thanks

 

Well why not set it to 3bar with hose disconnected, reconnect it then see what happens...

 

ill try that and see what happens