I have a crazy bad surge at idle with my freshly build. The SD2 has been programmed for the correct injectors. MAP sensor hooked up correctly along with a AEM wideband.
It seems to idle ok until Wideband correction turns on and then bam. Surge!!!
I have checked for vacuum leaks and fuel pressure is 43 line off.
I can make adjustments and get it to calm down and then all of a sudden it seems to come back.
It is now also doing it with the throttle pedal advanced some.
I am just trying to gather some ideas. I am almost suspecting a faulty injector. Fuel pressure drops off quickly after key off and sometimes it cranks as if one cylinder is out of time. Full of fuel. But would a faulty injector cause a surge from WB correction?
All files provided were after the vacuum leak was fixed (cheap auto zone vacuum ends).
Thanks
It seems to idle ok until Wideband correction turns on and then bam. Surge!!!
I have checked for vacuum leaks and fuel pressure is 43 line off.
I can make adjustments and get it to calm down and then all of a sudden it seems to come back.
It is now also doing it with the throttle pedal advanced some.
I am just trying to gather some ideas. I am almost suspecting a faulty injector. Fuel pressure drops off quickly after key off and sometimes it cranks as if one cylinder is out of time. Full of fuel. But would a faulty injector cause a surge from WB correction?
All files provided were after the vacuum leak was fixed (cheap auto zone vacuum ends).
Thanks
