You didnt happen to cut the Cam and Crank sensor wires and extend those did you?
Nope, there was no need to extend either of those two.
You didnt happen to cut the Cam and Crank sensor wires and extend those did you?
So unlikely to be a triggering issue. Could be an earthing issue.
Have you got any CELs?
Didn't extend the grounds? Dodgy grounding or wire connection could cause something.
If i unplug my stock ecu, my car still runs but bogs and stumbles. Only stuff that is left is grounding and stuff like PCV and purge valve.
I'm not trying to accuse you, just running through the list of things. Making you think about what you did to try and logically narrow it down.
Might save you throwing money at it I know a potential Solution, aftermarket ecu
Didn't know SF had yearly checks as well
have you tried going back to a sri and see how it affects the afr? maybe the maf placement on the 505 is too close to airbox? do you still have original ecu? swap it back in and see what changes? idk cheap things to try before dumping alot more money into it. good luck
Are those last few pulls at full throttle?
If so I'd get an adjustable fuel pressure reg, and give it a little more fuel.
Kk Awesome then. Glad the problem was sorted man