GTI 337/20th Anniversary :: Car Sputters Around Half Throttle / 10 PSI
Yesterday, I was taking off from a light and noticed that when I got around 10 PSI, the car kind of nosed over and sputtered. So I started to play around and discovered that no matter what gear, this always happened between 7-12 PSI of boost. Normal driving for me is shifting around 3k RPM, about half throttle. Sometimes when I shift, it pops. Not like a normal, chipped car pop but not quite loud enough to be a backfire.
I took my dad out in the car and got to 55 MPH, then held the throttle half way to keep boost around 10 PSI and it would start sputtering/bogging down erratically. Any more then 12, and the car is fine. Any less then 7 and the car is fine. He suggested a Throttle Position Sensor that has a dead spot in it.
Here's some thought from me:
Coils/Misfires - If it were a coil or misfiring, it would be all the time, not just what I described above, correct?
Boost Leak - At WOT, the car gets up and goes while holding steady boost.
Vac Leak - I've been told at idle, the car is supposed to have 19-21 in Hg of vacuum. It's at 20.
If you turn your speakers up, you can actually hear the exhaust gurgling in the video when I hit the spot I am talking about. There are no loud noises, so don't worry about maxing them. I had to.
[URL] ...
GTI 337/20th Anniversary :: P0172 - Hesitation When Start To Get Into Throttle
So my car is throwing a P0172 and when I start to get into the throttle, I get hesitation. I have replaced the plugs and the coil packs, and I tried unplugging the MAF which just made the car run worse. What could it be? Boost leak? Something else?
View 9 RepliesPassat (B5) :: Hesitation When Accelerating From A Stop / At Half Throttle Car Bogs Down
I have a '99 passat 1.8t Tiptronic. 106,000 miles. Recently I've been getting a bad hesitation when accelerating from a stop. At half throttle the car kinda bogs down and hesitates then as the rpms get higher it seems to clear out and accelerate smoother. At the same time the car doesn't have the same sack it used to. I checked he plugs, found them very fouled. Replaced them and the problem got a little better, but definitely still there. There has to be a reason the plugs fouled. There is no CEL so I don't really know what to check first.
View 2 RepliesGTI 337/20th Anniversary :: Cranked Half Way Started And Shut Down
So I was wondering, what my problem might be. I went to go start my car after work 3 days ago and it cranked half way started and shut down. The things that I have checked are fuses both at the battery and in the side panel, fuel pump relay... It clicks when I turn the key, fuel pump.. Its getting 12 volts when the key is in the on position. Now a buddy of mine had me roll down the driver window and arm the alarm then open the door from the inside and the alarm did not go off nor does the dome lights come on. And the the fuel pump does not prime. He told me its a food lever switch. It's not recognizing that the door is open and that it's linked with the fuel pump that's why it's not priming and it's not starting.
View 13 RepliesGTI 337/20th Anniversary :: Boost Is Bouncing All Over?
I'm to the point of driving the car off a cliff! I've included a log of the car acting upt. The car is a 20th AE GTI AWP. It was chipped all it's life and ran like a champ. In November I installed a Frankenturbo F21T turbo kit, Bosch EV14 550cc injectors, 3" MAF, eBay FMIC, 3" catted exhaust, and a custom tune from Motoza. Dave at Motoza has updated the file 4 times and no matter what he changes, the car will boost up to the requested boost of 19psi and hold it for almost one second, then boost will drop to 12-15psi and then boost past the request to like 22-24 psi and go back and forth until the gear is over and I shift. Then it does the same thing in the next gear. i just want a solid 18-20psi without a manual boost controller! Things I have tried:
-Changed the N75J back to a NEW stock N75
-Replaced all the N75 vacuum lines
-Wastegate cracks at 7-8psi
-Replaced every worm feed clamp to a nice T-bolt clamp
-Boost leak tested to 18psi and found no leaks
-Deleted SAI, N249, and N112
-Unplugged MAF, nothing changed
LOG with multiple WOT pulls: [URL]...
GTI 337/20th Anniversary :: Boost Leak / Only Getting About 4 - 5 Psi
I have a 20th 1.8t. It was running fine last week but all of the sudden i was only getting about 4-5 psi. I have check all over vwvortex for somewhat of an answer. I have no C.E.L.. I have checked for vacuum leaks with nothing coming up. I tried to check for boost leaks but it comes out of the dipstick hole. I have undone and re-installed the pancake pipe. The DV is holding pressure.
View 1 RepliesGTI 337/20th Anniversary :: Clutch Pressure Low - When Pushed Only Come Back Up Half The Way
Started losing pressure on my clutch pedal yesterday. When I would push in the clutch pedal it would not push back up to the reset position. It would only come back up half the way. Now today I have a steady ABS light and ASR light on. Checked for fault codes and found no trouble code. Checked brake fluid resevoir for leaks; still has plenty of fluid. Checked slave cylinder bleeder valve for leaks and looks dry. The only thing I think it could be is the clutch master cylinder. If I drive the car for a few minutes I am able to build pressure back up in the clutch, however the ABS light and ASR light still remain while driving. Turning the car off and back on again shuts off the light for a few minutes until I start driving, but the clutch pressure starts back low again.
View 3 RepliesGTI 337/20th Anniversary :: Radiator Malfunction - Hot On The Top Half And Cool At The Bottom
So basically a couple months ago I picked up a 03 20th and GTI, I love the thing to pieces, recently I've got into drive it and I can watch my temp gauge steadily climb to 90 and stop. (before I go any further, I haven't gotten any overheat warnings or anything like that, I've just noticed my car is really hot all the time and the temp gauge goes to 90 within a minute or so of driving but doesn't go over). heat works fine, I've gone in the engine and tested a few things, tested the fans by jumping the connections, my large fan is dead but the small works fine. to my understanding, the large fan isn't used much unless it's really hot anyway. so I removed it and continued trying to find my problem, I felt the rad after letting the car run for a bit, the top half was hot but the bottom half was cool, took the hoses off and flushed my rad thinking maybe something was clogging it, water ran through fine, so I put it back together, put new coolant and tried again. same thing. so I took it for a rip and came back, obviously, the top hose and the rad were hot, but the bottom one was kinda warm. I looked for answers online but I can't seem to find anything like what I'm dealing with. the water pump seems to be working fine, I'm not sure how much flow is supposed to be coming through the Small hose at the top of the reservoir, But I checked it and it has a steady stream coming out of it. I've worked all the air out of the lines as well. The car isn't overheating and doesn't really pass the 90 mark, fans almost never come on but the small one kicks into low when I turn the AC on. which as far as I'm aware is what's supposed to happen.
The car feels like its running hot, checked everything I can think of. rad is hot on the top half and cools at the bottom, coolant has a steady flow back to the reservoir. no actual overheat warnings, I'm just wondering if these cars run hot normally or if I should be concerned.
GTI 337/20th Anniversary :: Any Way To Tighten Lower Half Of Seat So It Does Not Move?
Whenever I take a turn my seat slides side to side, both bolts are tight in the front. Is there a way to tighten the lower half of the seat so it doesn't move?
View 1 RepliesGTI 337/20th Anniversary :: Boost Seems Dropped As Compared To Before
when the traction control is off my boost hits 18psi and there have been times where it was 20 psi. My friend said i probably have stage 1 software .
View 4 RepliesGTI 337/20th Anniversary :: Car Vibrates In Boost During Acceleration
Start with the basics, no CEL's, car has not cut out while driving and I've only had to attempt cranking up the car twice since I started noticing these issues about 6 months ago.
Symptoms: hesitation/variation in boost during acceleration- doesn't matter if I really get into the gas or just "normal" passing acceleration RPM's steadily climb, but just not as consistent or quickly. Also, the one that really has me really confused. With a 1/4 tank of gas or less, going up a slight incline (overpass); 70-mph-ish... acceleration dies off, rpm's slowly decline, and gas pedal doesn't respond for about 2-3 seconds. Car never shuts off, no CEL's, then everything is fine again! Even does it when I'm using cruise control. Car just rolled 110,000 miles
GTI 337/20th Anniversary :: CEL After Installing NS Boost Gauge
I'm not sure what to make of this ... I disconnected the battery before installing . The gauge seems to be reading correct based on what i researched. If there was a slight leak would it throw the CEL ? is it maybe just a one time thing that needs to be cleared afterwards ? Car drives fine and I plan on trying to stop at autozone to get there crapo freebie scan . Kinda annoyed considering everything went smoothly up until I drove the car more then 50 miles .
View 14 RepliesGTI 337/20th Anniversary :: Boost Build Up But Then Released
So I have a 20th AE with 113k Miles.
All of engine is stock, but when I FLOOR it from about 3rd-4th or sometimes 2nd-3rd the car will build up boost but release it without me letting go off pedal.
So, basically as I am driving the car sort of builds up, drops, builds up, drops without my doing anything but drive.
It will rev to about 3k stop for a second, rev to 4k stop for a split second, rev to 5k and so on... Not sure what this is or why it could be happening...
GTI 337/20th Anniversary :: Car Going Into Limp Mode Or Just Not Boost At All
Having trouble with car going into limp mode or just not boosting at all. Tried some basic things to fix it, plugs, coilpacks, tune, none have work.
View 4 RepliesGTI 337/20th Anniversary :: Boost Is Not Going Over 10 Psi And Engine Cutting Out
So I just installed a boost gauge. Vacuum line is running off the fuel pressure regulator. My boost is now not going over 10 psi and the engine is cutting out. It kinda feels like the dv isn't holding psi but just always open. The car is a 05 gli with intake and exhaust.
Also the car seems to be running alright at below 2000 rpm and it just starts to cut out when it should be making boost. And I'm pretty sure this car is reprogrammed because yesterday when I finished the boost gauge install it was running at19 psi.
GTI 337/20th Anniversary :: Boost Get Lower When In Upper Gears
For some reason My car won't boost like it used to in the upper gears. 1st, 2nd and even 3rd I can still boost around 18 but once I go 4th, 5th, 6th my boost get lower and lower to the point the I get only 10psi in 6th gear. The car also seems slower a doesn't spool that fast like it used. i checked most of the hoses, even my intercooler pipes which were leaking before and everything is tight. Could it be my DV which is still stock or should I look someplace else?
View 13 RepliesGTI 337/20th Anniversary :: Engine Sputter At High Boost
When I hit the gas and my turbo reached high boost (15 psi and up), it would slightly sputter and make an odd sound. I even noticed my exhaust made a different exhaust note than usual. While it sputtered the CEL began flashing. I then drove it normally (not high boost) all the way home and it drove completely fine. I'm gonna try and get my codes checked tomorrow.
View 9 RepliesGTI 337/20th Anniversary :: CEL On / Boost Gauge Reading 4 - 5 Psi Under Load?
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 RepliesGTI 337/20th Anniversary :: Lag In Boost - Diverter Valve Throws CEL?
If your diverter valve is bad, will it throw a CEL or not always? I don't have a CEL but sometimes I feel like there is a lag in the boost. Wondering if the diverter valve is bad or not.
View 6 Replies