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boost leak

  1. MKIV GTI
    So I did a boost leak test by pressurizing the system through the intake and found a few minor leaks but as I increased pressure up to around 12psi(this is where my car is capping off) I noticed a large leak coming from the wastegate actuator rod. Is this a common issue? Is it possible to change...
  2. VW GTI Problems / Complaints
    Relevant info: MKV gti - FSI engine, APR stage 2, downpipe, Forge Wastegate actuator (green spring), Eurojet CAI, Eurojet DV relocation, BSH throttle body pipe, BSH catch can, "D"-revision piston diverter valve. I will list the events in chronological order: 1. Since the summer i have been...
  3. MKIV GTI
    Ok so I went ahead and bought my first new vw I've owned a few older vw bugs. I have an 02 golf gti 1.8t I just purchased from a local here in vermont. I got it for a pretty good price so I thought. I noticed it had a few boost leaks before purchasing it......commen for boosted cars. Anyways...
  4. MKV GTI
    whats up guys my mark 5 has had this issue for some time now and i cant find the culprit. in high gear, heavy boost, low rpm.... i get a wooshing/ffttffttfftt sound that sounds like the DV/wastegate possibly opening and closing repeatedly, at EXACTLY 2100 rpm it starts and continues to 2400 rpm...
  5. MKV GTI
    whats up guys youve been very helpful in the past with my gti project. looking for more opinions. stock k03. when stock air box was on i had a loss of power at 2200rpm then at about 2400 it came back. felt like it just dies out then comes back. NOW several weeks after i installed a nuespeed...
  6. VW GTI MKV Vs. Honda Civic Si
    06 mkv gti fsi. only mod is a neuspeed intake. at about 2200 rpm my boost drops off quite a bit, then at about 2400 rpm it comes back < that is steady and happens about 90% of the time when giving a little gas. also randomly i will hear woosh noises while building boost, and when that happens i...
  7. MKV GTI
    My CEL comes on every few days and goes off a day later. throws p0507 code IAC reading higher air then normal. Also throws code for catalyst threshold lower then expected but thats due to the other problem i assume. I can feel a small loss of power, fuel milage went down a tad, i get a small...
  8. MKV GTI
    The other day it was raining and the roads were wet, i never beat on my car so i did a little burn out while it was wet. Right after i did it the idle was jumping from 700 to 2000 up and down and wouldnt stop. Also had it had like no boost and check engine light came on. Looked under the hood...
  9. MKV GTI
    My MkV Hisses constantly under throttle with no release sound. Also lost power. I cannot find any obvious leaks. Originally, I was Registering the CEL for MAF and P0299 (Underboost). I've replaced the MAF sensor, relieving me of the first CEL. I was hoping a DV swap would help as stated above...
  10. MKV GTI
    I was driving my car down the high way and then all of the sudden i started hearing a high pitch sound coming from my engine bay. I'm thinking it may be a boost leak but i'm not positive. My mkv just hit 70,000 and i don't have an owner's manual so i'm not sure if i missed any "check ups" for...
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