Golf IV / Jetta IV :: Turbo Attempts To Spool And Gets Stuck Almost Like Sputtering Then Misfires
May 8, 2014
2003 Jetta 1.8T. My car has an issue when you're driving and want to take off. I try to step on it and the car gets stuck. There isn't a CEL and one doesn't flash while it happens. The turbo attempts to spool and then gets stuck almost like sputtering and then misfires. "Sputtering" can last anywhere from a second to until you let off the gas. If you slowly climb through the revs it doesn't do it but if you punch it you're guaranteed to get stuck. I don't have a boost gauge to see if it's spiking but I'm running out of money, time, and options. I've had my car at my normal shop and they can't figure it out and the dealer techs are stumped too. Oil was changed last month and I did a seafoam treatment before I changed the oil.
Mods:
- CAI
- Unitronic Stage 2
- 225 TT DV
- Techtonics 2.5" DP with high flow cat followed by 2.5" straight pipe
- ST Coilovers Maxed out
- Corvette Sawblades 17x9.5 square with 38mm and 33mm adapters. Front and rear tires are different tread, and size. Fronts are all season 205/40/17 and rears are a summer 215/45/17
- Fresh wheel bearings and custom Porsche 930 Chromoly axles
Things that we've tried:
- New MAF
- Flashing back to stock and reinstalling the file as welling as trying lesser flashes (stage 1, 1+)
- New plugs
- New coil packs
- New throttle body
- Boost leak test (no leaks)
- Front o2 sensor
- New crank position sensor
- Throttle body position sensor
- New N75 valve
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I have noticed that when I have my ac on, I can hear the turbo spool and release noise (pshh sound) more prominently. I drive a 2011 GTI MT. Car is bone stock.
I was just curious to see if this is normal or indicative of a boost leak? If it was a boost leak, would there be a CEL?
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My car is Stage 2+ (mods are in signature). I noticed today a hissing noise coming from the rear of the car when my music was turned off. The sound is very similar to turbo spool but I'm 100% positive it is coming from the rear of the car not the bay. The noise does not show up until I hit 3rd gear and from then up it only makes noise when I'm accelerating. Under any load the noise stays the same. I can accelerate slow or accelerate a little harder and the hissing noise remains constant. The only two things that I can think of are the flapper valve on the SPM exhaust and the rear diff. However, I don't see why the flapper valve on SPM's exhaust would be affected by a certain gear.
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With the windows down today I notice that the turbo spool sounds like a damn laser. Boost leak or bearing. That is the question.
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Anybody have any issues with this? I have a week old r-line and had the epc light come on, turbo seems to spool heavily with little throttle input and seems a bit sluggish.
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It started after a blue spring upgrade. my turbo would not spool until we revved the engine hard then it kicked in and it's kinda worked since then.. it feels like the truck is struggling on acceleration and the boost builds fast up to 30lbs, the EBP seems to be stuck at 21.48psi until your in 3rd then it jumps and I have power again, also the turbo dumps (farts) if I let off even a little until the EBP jumps then no issues. I replaced the sensor and it's stuck at 21.48 all the time.
Now, I unplug it and it jumps between 26 and 28psi, plug in the old sensor while it's out laying on the motor (not installed) and right back to 21.48. I don't know where to go with this and it's my only truck so I need it running. also it was blowing the intercooler boot off at the turbo during a normal acceleration and the turbo spool has a howl to it when EBP is stuck...
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My car Mk4 Gti has not been starting recently, showing all the symptoms of a dead battery. When I try to start it clicks or sometimes if there's more juice the engine attempts to turn over once or twice.
The weird thing is this started happening in conjunction with my monsoon head unit randomly dying. The radio was dead for a while and my battery would randomly die. Then I fixed the radio by reseating the fuse on the back and the problem went away.
Just today I started my car and everything was fine sitting in my driveway. Then I noticed that the battery light was on, and then my head unit died. I turned my car off to try and fix the radio issue and then it wouldn't start back up. Not sure what the issue is.....
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I've got a 2002 Excursion which has been giving me a little trouble lately. I've got a DP tuner, 4" exhaust, afe stage 2, and gauges (boost, trans temp, EGT). I've been running these for about a year now without any truck problems until recently
So I noticed over the past couple weeks it has gradually been taking longer for the engine to start. Started off by just having to turn the engine over a few more times. Now it has turned into having to turning over the engine for a few seconds, then turning it to off, then trying again. It always starts on the second attempt to start my truck and sometimes really hard where it blows out a little black smoke.
Not sure if this is a correlation to the problem above or not, but I've also been losing boost pressure, and I'm not sure when this started since I haven't been on the highway for a while. I noticed this because this weekend I drove on the highway and saw that I was blowing some black smoke every time I accelerated which has never been the case.
So I check my boost gauge and see that I'm sitting at like 3-5psi when I used to be at around 10psi+. I also noticed when I accelerated the boost pressure would increase like normal but then quickly drop once I stopped accelerating which is unlike anything I've seen before in my truck. I don't seem to notice a huge difference power or throttle response, but then again 95% of the time I'm driving under 40 mph to get to work. So this problem could have started the same time as the starting problem, but I can't say definitively.
What this problem could be, what to check or test?
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Ever since I made my car turbo (UM tune) my long term fuel trim has been stuck in 0. When talking to Tom over at Innovative Motor sports (they were the ones that got my tune done) he stated that I must have my N80 ( Evap Purge Valve) unplugged, except that I didn't. Until recently, I had every single sensor plugged in except for my SAI pump and the flapper solenoid for the exhaust. My LTFT worked fine before and he can't figure out anything else that could be wrong. So before I send back my ECU to see if a refresh will fix it, what else should I look for?
For more info, my gas tank is venting to the atmosphere, I just have the solenoid connected electronically. This worked fine on my 1.8T so I don't see why it should be any different here. My short term fuel trims fluctuate mostly in the -10 range and off idle drivability could improve a little (thought it's not terrible) and I think that if my LTFT's were working right, it would take care of that.
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My GF recently picked up a 1.8t (AWW) and we scanned it with vag com before she bought. We knew it had some misfires and a few other small problems so when it ran at higher RPMs we didn't think anything of it.
Fast forward to now after replacing some parts (hoses, coil packs etc...) and still the RPMs seem a little high compared to my mk4 vr6. On the streets in 4th gear, my car stays around 2200 and on the hwy its probably around 3300 in 5th gear at 75mph.
On the streets, her 1.8t seems normal but on the hwy in 5th gear, she's at nearly 4k. So my question... Do 1.8ts run at higher rpms under normal driving?
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2005 gti 1.8t having really rough idle and misfires at idle fine while driving pulling codes:
P0300
P0301
P0302
P0304
Unplugged MAF and didn't make a difference...
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It all started a few months ago.... I started my car, and it started noticeably misfiring, CEL flashing and everything. I scanned it with my vagcom and it came up Cylinder 1 Misfire and Random Multiple misfire. I popped the hood, made sure everything was seated correctly, and shrugged.
Ordered some new wires for it, since it had 80k miles on it with original wires, I figured why not. The misfire didn't come back.
A few weeks later, same thing happened. Misfires, flashing CEL, same codes. I ended up driving it the 5 minutes to work anyways and figured I'd look at it later after I got off.
8 hours later I started it up again, ran like a champ, no CEL on. The problem didn't come up again for 3-4 weeks.
So now, without fail, every month or so, I'll get the same issue. It doesn't matter if it's raining or sunny or cold or warm. But if I let it sit for a few hours, it'll act like it never happened.
Now, I haven't replaced the coil pack yet, simply because it doesn't sound like a coil problem, but I might do it just for the hell of it. New plugs and wires have already been done.
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So I bought a used 1.8t back in august. My second golf, up from an mkiii and I love it. However, the previous owner installed a CAI and being that he lives in the desert, probably never had any issues taking on water. Fast forward to my problem, got caught in a rainstorm, limped it home with the CEL and the traction lights on. it died like three times trying to get it home, but it still would idle when I parked it.
Now I've used the search feature extensively on this problem, and what I've down so far is to take off the intake and reroute it about six or seven inches from the maf, I've cleaned the filter, maf, pancake pipe, and SMIC with denatured alcohol and those are all currently drying. When I took the IC off, specifically the connection between the pancake and the IC, a good three cups (~30oz/850sillyliters) of water dumped out.
Again, my car still was idling when I parked it. Scanned the CEL and got misfires and maf low air codes. Before I started tearing down the intake I took the coils and plugs out and put my shop lights above the valve cover to generate a little heat, maybe make a lil water evap from the cylinders. I live in a pretty arid climate, IE all the water that fell onto my garage floor was gone in 24 hours. Prolly wishful thinking but whatever.
My plan next is to put everything back together when it's all dry, pour a lil oil down into the cylinders, and crank it while the spark plugs are out. Hopefully any residual water will shoot out, along with the oil/gas, and I can go back to enjoying my life.
Also, the intake is hot. I'm thinking any water that made it past the intercooler would've been steam/vapor and I shouldn't need to remove that? Also it seems like it's in a conformation that would force any residual water to drain either into the cylinders or back into the intercooler, so I really don't see any gains by removing and cleaning it
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I have an 03 vr6. I'm getting codes p0300, 0303, and 0304. I changed the plugs and the coils and still has changed nothing. In the morning when I first go to start the car it has a rough start and idles rough. But after letting it warm up it is fine. It drives perfectly fine, no misfires. None of this started happening until the car ran hot a few weeks ago. Did a compression test and everything came up fine. So would could my issue be? I'm at a loss here. I was thinking fuel issue but if it was a fuel issue, wouldn't it run rough all the time?
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I recently bought a 2001 Golf 1.8t and everything was running smoothly until a few days ago.
I had to change the timing belt because I have 80,000 miles on my car, and the day I was going to my mechanic, I scanned the codes, and the p0301 and p0303 codes came up. The two codes are cylinder one misfire and the cylinder three misfire. So, I switched the two bad coils with the supposedly good coils to see if the codes changed, and when I scanned it again, the bank 2 lean 1 code came up. I had my mechanic look at the spark plugs and when we checked the plugs, there was oil ABOVE the plug, leading us to believe the misfire was from oil leaking in because of bad spark plug tube seals/valve cover gasket.
Regardless, I bought four new factory coils and four new factory spark plugs and factory valve cover gasket and spark plug tube seals. I replaced them today and I was hoping, in a perfect world, my misfire would stop and my car would stop sputtering and revving and fluttering my RPM's. I was wrong. The only other thing under the hood that I can think would have anything to do with it is that the PCV hose is just about fully ripped, but I'm not sure If that would still make my car sputter and cause my car to misfire.
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2000 Jetta MKIV ... 2.0L GL
I've been dealing with random misfire codes on my Jetta (P0300, P0301-P0304). I've since replaced the spark plugs, wires, fuel filter, MAF senor, & camshaft positioning sensor but the problem still persists. The misfires occur right on start-up and don't stop which is leading me to the coil pack being bad.
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I replaced the coilpack from the dealer last Summer. It got better as it wouldn't even start for a while after it finished raining. However it has still been finicky even after replacing it. Which brings me to the realization that water runs down the fender panel and ends up on the ground cable located under and to the right of the battery. Am I correct that this would cause the same symptom as a bad coil pack? It seems simple...move the cable right? However should water be doing that? Cause this little sucker is not stopping anything. Just need validation I guess...get new hood insert?
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My brothers car is a 2000 VW Golf 2.0 that recently started starting rough in the morning, when the motor is cold it will struggle to even turn on and will act like its only running on like 2 or 3 cylinders for a second and most cases stall, he is having to pump the throttle to get it to even stay cranked until it all sudden just starts idling fine and it idles perfect but still acts boggy if you try to rev it right away as its warming up, after about 10 seconds of it idling the motor can be revved perfectly fine and you can turn the car off and it will start back up immediately..
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I bought a 2000 jetta gls vr6 5-speed. Only had the car about 4 weeks, already I am in, ball joints, struts, brakes, core leaks and my half shaft fell off at the transmission. Now, driveabilty issue.
Severe loss of power, sputtering bad. when i shift, the car revs a bit. installed new O2 sensor due to a rich code and a out of range code. Now the EPC light is on with an implausible brake switch signal. Replaced switch still comes back on. Still running like poop. Changed the plugs also about 1k back. I just ordered a MAF.
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I have this issue from time to time where I will be driving and my car will randomly stall itself out and shut off. what could be the issue?
2nd I have an issue while idling, where if I am idling I feel a slight vibration like it is about to stall.
3rdly How big of an offset can i have on rear wheels that are 18x8?
The aforementioned questions are regarding a 2004 GLI.
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I have a 2003 Golf VR6. Last weekend the car started sputtering and then died. I haven't been able to get it restarted since. I have already replaced the fuel pump relay and the fuel pump. Since I replaced the fuel pump it will prime when I open the door or when I insert the key. When I go to start it it will only stay running for 5-10 seconds then acts like its running out of fuel and dies. EVERY. SINGLE. TIME.
Its not throwing any codes other than a couple 02 sensor codes telling me its running lean. What to do at this point. I was told that vws have a secondary fuel pump relay under the passenger rear seat that sometimes when it goes bad it will turn on the fuel pump to prime it, but wont kick on when its supposed to stay on. I cant find anything on the interweb about it. The shop I took it to that diagnosed the fuel pump said it wasn't throwing any codes when they scanned it.
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