More weird stuff
The video below shows the engine in open loop after starting. Fuel trims look good.
When it goes to closed loop one fuelsys says “closed” and the other says “error”. I’m not sure if this is because the
ecu isn’t designed to supply data of it is an actual error?
When in closed loop the fuel trims start to go high and the revs increase, 02s are flicking about (I will try to check the oscilloscope at this point)
The really weird thing is when I give the throttle a little blip the
ecu switches back into open loop momentarily and fuel trims fuel trims fall. Then it goes back into closed loop and the whole thing repeats.
New O2 sensors should be here next week, I’ll have to wait and see if they make a difference. I’m feeling a bit nervous now…
Fuelsys open/closed loop is middle column at the bottom, fuel trims are left column 2 and 3 from the bottom, O2 sensors above them. Anybody got any thoughts?