Okay, here's the car
AWP 1.8t mk4 GTI.
- stock DP
- Forge 007 splitter adjusted 25 clicks
- Swiss cheese stock intake with k&N high flow
- APR stage 1 93 tune.
My boost gauge is currently reading peak of about 15-16 psi. I replaces some vacuum hoses that appeared to be worn, and to no avail. I have no CEL, and no codes thrown at all. This sound like a boost leak.
I installed a VF intake a few weeks back and noticed my car is peaking at around 14-15 PSI max according to my boost gauge, when it used to hit 17 peak. I'm not sure if I may have a leak nor have I checked it via vag-com.
It does feel a bit off, but for as far as I know the gauge could be messed up now.
Just wondering if there would be any immediate signs (sounds etc...) of whether there would be a leak, or what other problems may cause this.
Car now has about 67,000 miles on it. I drove it from the bay to Lake Tahoe 2 weeks ago, which is when I first noticed the light. I tried to go to a couple of autozone's to get the code read but none of them would do it. I also noticed that now on my boost gauge that i am only reading 4-5psi under load, so its not quite feeling like i'm getting as much power as before. What a common issue is at about this many miles on a 1.8t car? (GLI)
View 3 RepliesBought a 1.8t 04 gli. Was boosting 15 pounds so i did a boost leak test. Found pcv up hose from valve to y pipe at valve cover was almost blown in half, so i replace all of that stuff with oem.
Boost leak test again, found where boost gauge is hooked up to, turbo outlet to n75, the hose was leaking, i fixed that.
Boost leak test yet again, n75 was not clamped down, so clamped that.
Boost leak test one last time, held 10 psi before blowing the cap out of the intake. Which is pretty dangerous, my cap is made out of a spray can cut in half. Sounds like a canon. Anyways i heard zero leaks.
So now I am boosting 18psi and holding perfectly fine. Why I am showing ZERO vacuum on my boost gauge??
I own a 2004 Jetta 1.8t, about 6 months ago i had an oil leak problem and a cracked vacuum line. i fixed the oil leak and fixed the cracked line with 034 motor sports pcv hose kit. I snapped 2 more vacuum lines and repaired them with rubber hose. p0300, p0301, p0507, p0171, p0303. Are the codes I am currently having actually have had them for just over 6 months. I've replaced all plugs, I've upgraded to ecs tuning 2.0 coils. No fix, went back to oem coils which I am using now. It runs pretty good until i clear the codes. Then idles all over the place and the boost gauge bounces all over.
View 16 RepliesI'm 6hrs away from my home, up in Acadia national park and all of a sudden I get a cel light and the gauge is reading 000A. I'm APR stage 2+ w/ apr hpfp.
View 12 RepliesSo popped my plastic shroud off to change my oil and thought it was strange the the hose for the boost gauge was really oily. Is it normal?
View 2 RepliesI live in Scotland so have a right hand drive 2003 MKIV R32. I got a VF stage 1 kit fitted last year and now I want to fit a boost gauge. I've bought a NewSouth indigo 0-30 psi gauge and a column pod.
What I need to know is where to take the feed from, where is the best place to fit the vacuum tube to get the best readings? any photos would be good.
I plan on fitting it this weekend along with my oil pressure gauge.
I purchased a P3Cars gauge and an analog boost sensor with an ECS boost tap. I seem to be getting some fluttering noise at higher boost (greater than about 15 psi).
It was my understanding that digital boost gauges didn't buzz, so I thought I high have some movement of the boost sensor, hose, or the interface box for the gauge. I've got these pretty well padded and fixed with zip ties.
Do I need to get an inline restrictor (cotton swab, filter or otherwise) to eliminate this fluttering noise?
I ordered the gauge kit, installed it with the printed out DIY (CIMs)
Looks great, everything is tight, no leaks. All power going to the gauge (even the dimmer).
When power is connected via the plug in the back of the gauge, the needle goes from -30 to 30, full swing like some newer vehicles, not when the car is turned on.
Here's the problem, is doesnt read anything. Sits at -30 at idle, rev (limiter) and under load. The DIY says it should be somewhere around -20 at idle.
The only thing I can think of is the pressure sending unit is broken. I know faulty equipment is not uncommon and I'm not mad if that is the case as long as it gets resolved, I just want to get this thing working. This is NOT a bash against CIM either, I don't want anyone getting the wrong idea.
Also, I used a forge boost tap. Everything tight, and secure, no leaks going to the filter, or the 4" hose from filter to psi sending unit. Did I miss anything that's not in the write up? Early 11 model DSG MKVI
My boost gauge is bouncing around during the flutter at peak psi? I have a apr stg 2 evoms intake and full tbe exhaust 42dd...
Here is a exact video of the flutter i am talking about [URL] ....
Recently ran into an issue where my boost gauge stopped reading correctly and makes a weird buzzing sound under acceleration. (Whenever I am generating positive boost).
View 2 RepliesI've got a 2001 Volkswagen Jetta 1.8T Wolfsburg Edition.
Recently the temp gauge sits at 260* as soon as the car starts, but it's not actually overheating. Car runs/drives fine and will do so for many, many miles. Even in stop and go traffic. Was told the thermostat was replaced, but that didn't fix the issue although it doesn't sound like a thermostat issue since the car isn't actually overheating. Coolant is topped off as well.
I am thinking it's a bad sensor. Where is it located on this car?
Car is a friends and she said she took it to a shop to have the coolant checked and they were also the ones who did the thermostat.
My speedometer reads accurate only till around 45 mph. The needle begins to float around gently, and the faster I go, the more discrepancy it reads. It may hang a while, floating around 60 and the speedometer app on my phone says I'm going 74.
The speed sensors were replaced for another issue a year and a half ago. The dealership initially wanted me to put a new transmission in it for $3800 after they said the trans was slipping past 45. Then they said something instead about a valve plate (could be wrong vernacular) for $1000 instead of an entire transmission.
When I finally told them that my cruise control is completely erratic, trying to track the needle movements with upshifts and downshifts, they said it's $200 in parts for the drive gears and that they were made with plastic that can wear out.
So I said I would sit on it, since the ideas about the issue seem to vary greatly, and my father set me up to go to a transmission shop to have the car checked out. They had it for two days and changed the fluid out but we can't fix your speedometer issue... take it to the speedometer shop, but btw we think your transmission is fine.
Now, do I take it back to the dealer for the drive gears, or do I take it to another specialist? I have seen people say all it needed were the drive gears replaced and a new sensor. My odometer seems to still be working. There is no issue with my gas gauge.
My display on the MFA and Climatronic panel is really wrong (-44C now). I was taking a look at the sensor in the front left grille but the only thing that's changing into the readings with my Vag-Com is the outside temperature sensor but not the displayed temperature.
I didn't find any other sensor on my car. Nothing into the rain tray...
my car into VAG COM and since then it hasn't boosted past 4 lbs. it has Revo stg 2, K04, aftermarket side mount, full exhaust and a couple other bolt ons. Before the car was spiking at around 23/24 lbs. after pressure testing the system I found that the turbo inlet pipe was lose, so I tightened it. Still no change. I tried holding the battery terminals together for 10 minutes to reset the ecu and I also tried clearing the codes through a handheld code reader. No codes even come up anyways for this. The car is a 1.8T.
View 4 RepliesSo my 2001 1.8t Golf is having some issues holding boost. I have a Gonzo stage 2 tune, CTS FMIC, Forge 008 Diverter, Silicone inlet and MagnaFlow Exhaust. I've also done the whole Evap, SAI delete and installed a catch can.
Starting in 2nd or 3rd at WOT the car spikes up to 18psi and then progressively loses boost throughout the rev range. Close to redline the boost drops to 5 psi or so. It seems to be dependent on the revs. In fifth gear the car holds 18 psi much longer as the revs don't increase as fast.
There are no CELs. I've done multiple leak tests starting at the air box and plugging the pcv/catch can system as well as at the compressor side of the turbo. None of the tests revealed a leak anywhere in the intake system. However, when I stuck my ear very close to the valve cover I could hear what sounded like a very small air leak coming from inside the valve cover. I took a look at the wastegate actuator and it seemed fine, no play in the rod, no loose bolts and to move it just requires enough force to compress the spring and it returned to its original position.
My thoughts are that it could be a fueling issue or turbo in the process of dying maybe.
Just noticed today that I have a slight drop in boost. Normal boost is 1.5 bar but today it is running slightly lower boost and does not have the same pull through all the gears.
2001 mk4 1.9 tdi golf
I just recently notice a whistling noise when I hit boost. I'm not sure but it sounds like it is coming from my gauge. I'm not losing boost pressure. I do have a glow shift gauge. The most recent install was the TIP which I clamped on to the turbo but I'm wondering if it isn't on tight enough.
View 2 RepliesI was riding along today everything running fine then I came to a stop sign and when I pulled off my car wouldn't run 10 psi of boost it was only running 5 psi so I when to a buddys checked everything over and all my piping looked fine so I went up the road and everything was fine so when I started going home it did the same thing pulled of shut the car off pulled off and it was fine again.
View 5 RepliesI think my stock DV is going bad, my car makes a weird noise under boost?
1. Only happens when first starting the car after it has been sitting for an hour or a few. (not overnight)
2. Does NOT happen when first start in morning.
3. Goes away after like 5 minutes every time and the normal WHIIISHH sound comes back like it should when I step on the gas.
4. It does not make the sound at idle.
This recording I made was of my car being revved up after it sat for one hour.
[URL] ...