HELP!! 1.8t

[kwinsijowns]

im trying to figure out whats wrong with my car..the boost spikes up to 16 lbs really quick then it drops down to 5 then it goes up again and drops down..normaly its boost only 11lbs and holds around 9..i jsut installd a samco turbo inlet pipe and greddy rs recirculating bov..it ran ok for about a month then this starts happening ...any idea or opinion would help alot!!

[Pireboi251]

are you chipped?got an exhuast? IC?

Did you install the stuff correctly? (not trying to me be mean gotta ask)

cause you may be surging or in limp mode....

[David-jetta 1.8]

Mine does the same thing, But i'm not chipped and no TIP

[kwinsijowns]

im not chipped and i got a axle back exhaust..i think i installed evrything correctly ..it seems like there's a vacuum leak cause it dumps the boost while im still in throttle. also its so weird how im not chipped and im boosting upto 16lbs

[David-jetta 1.8]

Mine will spike up to 20lbs, while I have it floored and it just goes straight down to like 5 lbs. Not to mention when I have the 007 DV on the car I boost daily about 11-13 lbs, But when i Put my HKS SSQ on I can't get over 6 lbs

[kwinsijowns]

since when is ur car doing that?

[David-jetta 1.8]

since when is ur car doing that?


It does it every once in a while, But like I said it's EVERYTIME with the HKS I can't get over 6 lbs, But with the DV it's from time to time when i will spike to 20lbs then go straight down to 5 lbs

[kwinsijowns]

r u throwing any codes? mine jsut started last nyt and it wont go away

[David-jetta 1.8]

Umm, the check engine light will go off then come back on. But I know it's for over boosting. I know i'm not in limp mode, I have no LEAKS at all. so i'm clueless on what it is. I just dunno why it would do it all the sundded ya know.

[Neccros]

Sounds lame, but I had a similar problem then I had a boost gauge installed.... my car would spike at 15-16 then drop... I had just gotten the car and never touched the air filter.

I finally popped it open and noticed the filter was dirty but it also had this weird foam stuck to the bottom of it. Im guessing it was a moisture blocker. Car was an east coast car.. Well basically popped in a K&N filter and bam problem solved...

Car boosts and spikes perfectly after I thought it had a boost leak and 2 shops told me if was fine...

Just a thought

[David-jetta 1.8]

I have a CAI and a boost gauge, Maybe a dirty CAI filter???

[Neccros]

I have a CAI and a boost gauge, Maybe a dirty CAI filter???

Maybe.... read my post above

[kwinsijowns]

let me try to clean my cai see what happens...thnks for the info neccros

[David-jetta 1.8]

Same here thank you

[Neccros]

I don't have a CAI but just a drop in K+N... Might be the same issue, might not be

[jordan]

clean your maf, change your coilpacks and spark plugs. then see if it gets better.

[Neccros]

I wouldn't change the packs or plugs unless your throwing codes

[David-jetta 1.8]

So just clean the maf buy blowing air into it and stuff?

[kwinsijowns]

there's a maf cleaner that u can buy...i cleand the air filter but its still doing it

[jwill'sMK4]

clean your maf, change your coilpacks and spark plugs. then see if it gets better.

x2 and maybe get ur intake tract smoke tested

[kwinsijowns]

any1 have a vag that they can bring at the meet this wed? just wana scan the car..