Hello to all.
Today I'm going to tell you a story that I've been telling everyone for 5 months...
I have a megane 3 1.6 16v (69000 km), and I have a problem with it.
When the engine is cold, like overnight (it does this even if it's left a couple of hours, like 4 hours), the engine starts(a little hard, for my taste) the rpm goes to 1100 rpms, after this, in 2-3 seconds it goes to 800 rpm and starts to shake like she's running in 3 cylinders...For about 15 seconds until the ecu(I think) raises the rpm back and the car is normal...But this is until I drive it. When in traffic and I want to accelerate, when I push the gas pedal, nothing's happens for a while and suddenly the car accelerates. The EML does not light up, I have put various testing software's even the oem one, and there are no signs of errors...all the computers of the car are green and error free. This problem is making me crazy.
Parts that I changed/cleaned:
Coils, spark plugs, sealed the intake manifold( all those three things in RENAULT SERVICE), cleaned the throttle body, changed the MAP sensor, cleaned the camshaft sensor, changed the timing belt with water pump and the dephaser pulley(it was rattling), oil and filters have been replaced. Any help would be great.
I will put a link here with my Youtube video of my megane... I am desperate...
https://youtu.be/kY6WMP7RxuY