Hello lads, I'm having an issue with my 4efte.
Only off boost and only when trying to take off a traffic light or a stop, the rpms from let's say 2000 drop to 1000 even when I floor the gas pedal and I experience massive hesitation. After a while the rpms go up and everything is fine. I have no boost leaks (checked), every sensor is replaced , vacuum lines are replaced (no leaks), fresh ct9 turbo repair, ported manifold (and all gaskets checked). I'm running a 4efte on a hyundai to be exact. But everything is in place as it supposed to be. The problem is only at that low rpm and only when trying to launch fast off a traffic light. If it's uphill it gets worst and I have to slip the clutch or raise a lot of rpm till I launch correctly. It's not a bit issue but it's annoying.
Also, new spark plugs, trd leads, cleaned throttle body etc etc. I have checked every single thing but I am getting this crap...
One more to mention is that when the car is cold and only cold, my afr is 11.5 on idle and off boost while cruising is 16-17 for a couple of mins till the engine warms up.
One last thing. When I get that bog/hesitation my afrs are 14.7. I even added 10 degrees on emanage to fix this , it got a bit better but not perfect. The timing is stock 10 deg , checked with a timing gun. No engine lights whatsoever.
The afrs are 14.7 idle/cruising, 11.5 when on boost all the way to 1 bar.
The car made 153hp @ 1 bar on stock ct9 with FMIC and ported manifold , trd leads and iridium spark plugs on emanage blue and walbro fuel pump
No fpr, no fcd
I'm attaching dyno graphs torque and hp
4efte ep82 ecu.
Any ideas?
Only off boost and only when trying to take off a traffic light or a stop, the rpms from let's say 2000 drop to 1000 even when I floor the gas pedal and I experience massive hesitation. After a while the rpms go up and everything is fine. I have no boost leaks (checked), every sensor is replaced , vacuum lines are replaced (no leaks), fresh ct9 turbo repair, ported manifold (and all gaskets checked). I'm running a 4efte on a hyundai to be exact. But everything is in place as it supposed to be. The problem is only at that low rpm and only when trying to launch fast off a traffic light. If it's uphill it gets worst and I have to slip the clutch or raise a lot of rpm till I launch correctly. It's not a bit issue but it's annoying.
Also, new spark plugs, trd leads, cleaned throttle body etc etc. I have checked every single thing but I am getting this crap...
One more to mention is that when the car is cold and only cold, my afr is 11.5 on idle and off boost while cruising is 16-17 for a couple of mins till the engine warms up.
One last thing. When I get that bog/hesitation my afrs are 14.7. I even added 10 degrees on emanage to fix this , it got a bit better but not perfect. The timing is stock 10 deg , checked with a timing gun. No engine lights whatsoever.
The afrs are 14.7 idle/cruising, 11.5 when on boost all the way to 1 bar.
The car made 153hp @ 1 bar on stock ct9 with FMIC and ported manifold , trd leads and iridium spark plugs on emanage blue and walbro fuel pump
No fpr, no fcd
I'm attaching dyno graphs torque and hp
4efte ep82 ecu.
Any ideas?
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