most of you know my cars CEL came on durning the CED meet for a MAF/MAP sensor. when i replaced it the intake manifold is coated in oil. any suggestions on where its comeing from so far does not look like im in need of a catch can. cars 100% stock other than the trifecta tune im so badly wanting to uninstall on the car. any help tips would be very helpfull. dont want to take to dealer if its a simple fix.

also cars running sluggish and pops alot when shifting, normal low to no boost shifts

 

If it's in your intake, its from PCV blowby and a catch can would correct the problem.

 

took car to dealer no codes they say nothings wrong with it. after shifting to second gear is hessitates almost like a missfire but not being recorded, i have the stock tune back on it and still does the same

 

i replaced my intake tube with the zzp one and it had oil in it pretty sure its a normal thing on lnfs

 

yea it is normal, its the fact that it runs like crap even tho i had an induction clean done. im realy thinking cat is clogged like my base was when it had a popping exhaust when shifting

 

maybe go catless downpipe then youll have no problems lol

 

did you check your map sensors? that purge evap thing? spark plugs?

 

a clogged cat on a Turbo/supercharged car will usually boost higher than it should..... have you seen anything like that?

 

yes after i retuned it back to stock it boost up to almost 20psi, havent gotten on it yet

 

has a new MAP thats what went bad.

 

but theres 2 maps and a maf isnt anything near a map sensor...

 

i thought it was a MAF (on cold side pipe) and a MAP(on the intake mani) ?

 

MAF is in the intake to meter air.

Map sensors, there are 2 for boost, one in the intake mani and one in the lower, cold, charge pipe. And that one gets nasty oily and then does stuff like what you say is happening.

 

How can you say this^^^^???

Any turbo car..especially with added boost, is going to spit out oil into the intake. My catch can is on it's way as I type. GET ONE!

 

this is what my catch can collected

 

catch can is 99% a must on this car. My ms3 and this car have oil in the intake. And a lot of the time you'll see oil on the map sensors.

 

ill check the second one then and clean it with some carb cleaner.

for the catch can i hardly boost anymore just that one day maby thats why i dont see anything anymore.

 

Ummm sounds a lot like what I just experienced and my car is at the dealer right now getting a new turbo....bearings locked up in it. When I took my intercooler off a half a quart of oil poured out of it. When the bearings go oil goes by into the charge piping to the intercooler to the intake manifold.

Id say take it in but I took mine to 2 dealerships whenever I had surging issues and they told me no code no fix (I eventually figured it out and fixed it myself about 20k later). I told them my turbo was gonna go and they told me well if it goes then that's what your warranty is for....so it took complete failure for them to do something. Gotta love it

Good luck

 

if thats so i might as well have taken it to the good dealer. i have yet to realy work on the car to see if oil is in the intercooler. so far cars running fine since the induction clean. but i realy havent gotten on it.

 

Its worth looking into. Mine was misfiring during shifts, lack of power, would smoke SOMETIMES out of the tailpipe under boost right after a shift for a little bit but then stopped that symptom altogether.

Do you have any way of knowing your afr or fuel trims? If you are running rich Id get it in asap. This is my theory on what was going on with my car: the turbo bearings were going, the tune commanded certain fueling based on boost, the turbo was not in fact pushing the boost that it should have been making because of the bad bearings. this was causing the car to run rich. the extra fuel is being burned only when you let off and shift, causing the pops. this is all a theory but makes sense to me.

good luck bro

 

realy thats what mine did, i thought it was normal for boosted cars.

no i do not have any way of knowing the AFR or fuel trims

 

are you getting **** fuel mileage or smell fuel in an overly rich situation. i was getting like 20mpg and in some instances could smell fuel. it would pop during shifts...which if rich is when the extra fuel was able to be burnt....

far as smoke.....we will get little puffs of black smoke but i was getting blue puffs after a shift right when i got back on the throttle....but only for a short while and then the blue smoke completely stopped.

 

no mines getting 30.2 mpg last year tho was 32.5. its not blue its black smoke, its pops when shifting with like 5 or below PSI at times dealer says its all normal.

 

well thats good. you may just be getting a ton of blow by. if that's the case you wanna install a catch can

 

id love to, but im makeing less now since i got hours cut use to work 6 days made 400+ now with my health insurance comeing soon itll be like 2something.

oh since induction clean car has been running better less pop, and since my race with the porsche, its boosting fine. im hopeing thats all it was man that whole ride back home CEL comes on and it drove like mad *****.