Originally Posted by
Alan G
I've the fuel pressure set to 3.5 bar at idle with vacuum off and 3 bar with vacuum on as per MSD instructions for the chip.
I have a GRP4 alloy tank with built in swirl pot (injection) being pumped up to the rail by a bosch 044. I've got a sytec fse adjustable fuel regulator.
What's the afr just before it misfires? That will give you an indication if it's fuel related or not