So, still no sollution here and it’s driving me nuts.
The car still misfires under low (almost stationary) load and when stationary.
Misfires occur on cylinder 1/2/3/4/5/6/7/8 never on 9/10.
If i am at a traffic light the CEL starts blinking after a while so i know this is the time it starts misfiring. Sometimes it gets solved by itself but most of the time i’ll get EPC and CEL telling me i’m no more running on all 10. Just a quick engine off and on will solve this.
If the blinking starts and I put the car back in neutral and rev it af few times the CEL engine light stops blinking so the misfires stop.
If i’m driving hard or not too long on constant throttle everything is OK, engine runs smooth and strong.
BTW i changed: spark plugs, injectors, coil packs, all intake gaskets, the connecting part from throttle bodies to intake, PCV an HPFP’s. Pulled out the JHM spacers for now so i get the car completely stock to search the solution here.
One thing I noticed is that if you check the fault codes i read pressures from 1000mbar to 1010mbar when misfiring at idle…
I would expect these readings on full throttle. Since the throttle valves are supposed to be closed on idle i would expect a lower pressure here or am I wrong?