warringtonjack
Active Member
Hi guys
Car is in process of being remapped at a tuner. He has discovered that the car starts running very lean at about 5k rpm, regardless of which boost pressure, etc the car is running. We're struggling to determine what is causing the fuelling drop off, so I'm after as many possible causes that could give such a consistent drop off at a given rpm, so that I can cross each one off.
As far as fuelling goes, the car has new 1000cc injectors, 390l/hr in tank pump, standard fuel rail, 3076R, z32maf. The tuner is mapping at 1.6Bar as a mid-range boost pressure.
Any advice gratefully received.
Cheers
Car is in process of being remapped at a tuner. He has discovered that the car starts running very lean at about 5k rpm, regardless of which boost pressure, etc the car is running. We're struggling to determine what is causing the fuelling drop off, so I'm after as many possible causes that could give such a consistent drop off at a given rpm, so that I can cross each one off.
As far as fuelling goes, the car has new 1000cc injectors, 390l/hr in tank pump, standard fuel rail, 3076R, z32maf. The tuner is mapping at 1.6Bar as a mid-range boost pressure.
Any advice gratefully received.
Cheers