[sammy_0559]

Okay...finally got my car done it runs great i guess. things i replaced are

all new

-Turbos, all hardware and lines.
-6 injectors
-6 plugs
-6coils
-CPS sensor
-new Vanos selionids
-Clean intake valves
- RB PCV upgrade
-Valve cover gasket
-T-stat
-Water pump
- Transmission flush and New sealing sleeve and filter pan.
-Diff flush
- Oil filter housing Gasket, and oil cooler gasket and gaskets for the lines going to the cooler.
- new transmission cooler
-new oil duh
- new coolant duh

Don't ask me how much i spent.. lol

and all that cleared up the smoke coming from my exhaust. So if your smoking do the above

cant remember what else. but all that is changed, and new. now the car starts fine. and when i drive it it drives great but i have a little bit of a shudder i dunno if its knock but you cant hear it but i can feel it i guess in the brake when I'm sitting at a light.
LOL maybe a new belt? i visually inspected the belt when the car was stripped while installing the turbos the belt looked fine, can think of any other wear and tear that could cause this. help

[danniexi]

HPFP? Get any codes?

That's pretty much the only thing you DIDN'T replace with the car.

[sammy_0559]

Originally Posted by danniexi

HPFP? Get any codes?

That's pretty much the only thing you DIDN'T replace with the car.

No codes at all!! LOL and i got the HPFP replaced 15k miles ago

[Wedge1967]

The n54 is notorious for a slight shudder at idle almost as if it's missing. I took my car to the dealer about this issue when I first bought my car because I thought something was wrong, but now I just live with it. Plug change did help a bit, now it's not as drastic as it was in the past. Apparently it will never be the smooth running engine at idle as we would all like it to be.

[Jeff@TopGearSolutions]

Normally I would say leaky injectors, but in most respects, the N54 and poor idle is the same as water is wet. I bought my car new with 1.3 miles on it, and the idle was crap then too.

However, new injectors doesn't mean the were coded correctly, or they sat correctly. Usually a leaky injector shows signs of fouling plugs in those cylinders.

Check your plugs, if they are all the same color, your injectors are probably fine, so you can rule them out again.

[sammy_0559]

Originally Posted by Jeff@topgearsolutions

Normally I would say leaky injectors, but in most respects, the N54 and poor idle is the same as water is wet. I bought my car new with 1.3 miles on it, and the idle was crap then too.

However, new injectors doesn't mean the were coded correctly, or they sat correctly. Usually a leaky injector shows signs of fouling plugs in those cylinders.

Check your plugs, if they are all the same color, your injectors are probably fine, so you can rule them out again.

I did all the work, i double checked the values on the injectors and i will check again today. but I'm 99.9% sure they are coded and installed right everything is torqed to spec, and the plugs are new lol the car is literally 1 day old of a 3 month coma.. i was expecting a new car that just rolled out of the dealer haha i should have took the block off and got it bored. and ported the head.. LOL to rule out everything.

[JamesM3M5]

Drive it hard. There may be carbon buildup inside one or more of the combustion chambers causing a poor idle. It can happen easily if you have excessive oil dumping into the intake ports (usually 5 is the worst) from the PCV system and/or a bad injector.

[sammy_0559]

Originally Posted by JamesM3M5

Drive it hard. There may be carbon buildup inside one or more of the combustion chambers causing a poor idle. It can happen easily if you have excessive oil dumping into the intake ports (usually 5 is the worst) from the PCV system and/or a bad injector.

Injectors are new, pcv is upgraded lol
And I'm babying the turbos cuz new for about 100-150 miles

[Jeff@TopGearSolutions]

Originally Posted by sammy_0559

I did all the work, i double checked the values on the injectors and i will check again today. but I'm 99.9% sure they are coded and installed right everything is torqed to spec, and the plugs are new lol the car is literally 1 day old of a 3 month coma.. i was expecting a new car that just rolled out of the dealer haha i should have took the block off and got it bored. and ported the head.. LOL to rule out everything.

Could be a tiny vac leak? That is really the only other thing if everything is that new and perfectly installed. But like I said, this car had a poor idle always, some worse then others.

My last car had that shutter you speak of, but it was because I had over sized injectors from the blower and nitrous i was running. A little tuning fixed that though. It's usually fuel related when you get that random shudder.

[sammy_0559]

Originally Posted by Jeff@topgearsolutions

Could be a tiny vac leak? That is really the only other thing if everything is that new and perfectly installed. But like I said, this car had a poor idle always, some worse then others.

My last car had that shutter you speak of, but it was because I had over sized injectors from the blower and nitrous i was running. A little tuning fixed that though. It's usually fuel related when you get that random shudder.

forgot to Mention all the vacuum line were changed from the waste gate actuators all the way to the brake booster haha

but your right it might be tune related. time to hit up terry!

[marv85]

I thought you were waiting on stage2??

[sammy_0559]

Originally Posted by marv85

I thought you were waiting on stage2??

Canceled, could not wait if it was going to be mid november i would've but mid december that would mark 4 months without my car .