GTI 337/20th Anniversary :: GLI Pulsing During Acceleration
Jun 21, 2013
I have recently purchased a GLI and am in the process of resurrecting it. One of the main issues I am having is when I get up on it during acceleration I start to feel a strong pulsing. I have found that it only will do this in hot weather and it does it in every gear. I work at a volkswagen dealership and have asked other technicians if they had any clue and nothing. I am going to have a pressure test done to it to see if it could possibly be an intake problem. Everything on the car is stock and I don't want to upgrade anything until I figure out what this it.
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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
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I was driving the other day and accelerated in 5th and the car stuttered before finally going- I got the flashing CEL. I figured that the car was misfiring and that a coilpack change was the culprit. All my coilpacks are fine and the sparkplugs look good as well. CEL hasn't come back, but the car just feels like it doesn't want to go right away when if i give it some gas when I'm going about 55-65 MPH.
Other guesses would be there is a fuel cut somewhere and that may be causing it?
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I have a 2004 VW jetta GLI 1.8 turbo and when i get it to about three and a half grand it feels like my turbo is giving out, all acceleration stops. But I doesn't do it all the time, meaning not every time i step on the gas, like I can step on it all through first and second, and it will do it in third or visa-versa. Which leads me to believe that it could be a fuel delivery problem but I don't know, im new to the VW game. The check engine light will come on while the car is bogging down but as soon as the rpms go down it will turn off.
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Under heavy acceleration my car surges. I have already put a new stock diverter valve on and no change....I am thinking n75 is next on my shotgun list?
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Here is what happened: I was accelerating one colder morning while driving to work when the power just dropped. Then engine continued to run, but I had no power or acceleration over 3000 rpm. Since that time, that is how the car drives. It starts, runs, etc... but has no power (like rev limiter or something) over 3000 rpm. The turbo spools up fine. I do know my 02 sensors are old. The engine has 184k on it... not bad. Is this a head gasket situation?
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Under acceleration between 65-80 on the highway I get a serious vibration in my steering wheel. I can feel it in the floor of the car too. When I let off the throttle it goes away. I have new tires, wheels, and new axles too. I thought it was the inner cv's but i was wrong. I was thinking possibly motor mounts, but I am not 100% sure. Specs 2004 Jetta GLI, ecs 10mm spacers in the front, coilovers dropped 2 inches, otherwise everything else is stock in the bushing mount department.
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Did some searching on this and some said it could be the throw out bearing, some sort of intake rod or something like that, or possibly a heat shield..
Figured I'd ask to see if there has been more of a solution as the threads seemed pretty old.
When I accelerate or rev, the car has a rattling sound coming from the passenger side. If i take the car out of gear and slow down or let it idle, the noise disappears completely.
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Recently bought a black 20th for my girlfriend for Christmas. Any ways, so I floored it from a dig, and the ASR light kept coming on during acceleration and shutting off between shifts, just wondering what the situation is.
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My 20th Ann. Is jerking under acceleration. When I hit the gas pedal slightly hard it starts jerking. Every once in a while the CEL will flash on and off. I changed the spark plugs and coil packs, cleaned the MAF, and now I have no real direction where to go. Maybe it could be a vaccum problem...
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Ive been having two issues with my GLI lately, last week while driving on the parkway my car just randomly lost acceleration, no lights came on but the gas peddle was unresponsive. I was able to restart it while coasting and thought nothing of it. Then it kept doing it. It was raining that night but ive never had an issue before. Other times it dies it is sunny out. The second issue is sometimes when I hit over 10lbs of boost the car will start to misfire and run like crap. No CEL's come on the dash but if we scan it with VAGCOM it says theres misfires happening, obviously. Already did a smoke test and there are no vacuum leaks.
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Trying to get my car all fixed up for winter, but my steering wheel has a vibration.
When on the highway, it gets worse/faster with accel. and when i let off the gas and coast, it almost goes away... does not change (better or worse) with braking.
Specs - Dropped on koni coils, 2 diff sets of rims (one brand new, one came with car same problem with both sets), spacers all around, everything else stock...
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After a full complete stop or slow down to almost complete stop upon acceleration from that stop or slow down my dash brake light blinks and yells at me for the standard amount of time then goes away. It only does it upon acceleration its weird its almost instantaneous with me pressing the gas pedal. No squealing noise or anything else is coming from the rotors and everything feels normal its just starting to get annoying as hell.
About 6 months ago I replaced my pads and rotors with the drilled and slotted kit performance-cafe offers and had it professionally installed because, I'm lazy and it would have take me years to do it. This problem only started recently so I'm pretty sure its something else or something went bad. What I should check or have specifically looked at if I take it in?
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The past few days ive been having some boost problems. Boost will surge to 15psi then drop to 0psi and continues on acceleration. Coming from work today I was unable to get past 5psi accelerating
Then on WOT the boost would spike to 23psi then down to zero. Checked all hoses i could see and reach to make sure they were connected.
Mods:
Forge 007 DV
ECS Race N75 Valve
Turboback Exhaust
Chipped
Short Ram Intake
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I got this car (03 gti 20th a/e) a few months back, and days after taking ownership it started having issues. the one that's still present is related to the boost. Every time I go to accelerate and hit 15-17psi the car sputters, and sounds like a popping noise under the hood..followed by the car going to 5psi for a few seconds, and the engine light flashing (then goes to solid cel).
The car has been scanned for the cel and it had thrown a number of codes-all have been addressed..but still have the same issue!--misfire in #3. I have had a local shop that only works with vw's & audis do all the repairs. we have replaced the coil pack, the spark plugs, and the N249 boost valve. The car is still showing a misfire in #3. What could be the issue? Maybe its the tune?
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I have a new (to me) 2007 3.3 Sonata w/ 64XXX miles on it. Recently it set off codes for P2A03 and PO154 indicating a problem with the front upstream o2 sensor. Before I replace the sensor I was wondering if these codes might have any other underlying cause.
Symptoms: The car has recently had one instance of pulsing acceleration and one incident where it didn't want to turn over but after an extended start finally started; this problem has not repeated. Otherwise the car has strong acceleration smooth idle and drives fine.
Also, I would like to know if o2 sensors are covered by mandated emission warranty or by Hyundai's 10y/100,000 warranty.
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I want a 20th AE & have seen pics that say ESP on a button next to the hazard & others say ASR. I know that their was one option for the car: ESP. So what's ASR? Is one better than the other? Is it the same? I've heard that the ESP sucks for autocross. Is this true?
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I was driving at about 60mph in 4th gear and knocked it into 2nd and the rpm's hit the max and the car shut off and I have not been able to get it started. I have compression, fuel, and spark . I've checked oil and don't have any coolant in and nor did I have any oil in my coolant. When I try to start it it try's to start but won't turn over so .
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Driving home from work, I was about 5 minutes from home, got to a light only to not be able to go into 1st. I popped it into 2nd and drove home like that pretty much. Car will let me get into reverse and all other gears.
I can put the shifter towards first but it doesn't fully go in and when I gave it gas it would let me start to creep and then grind a little and pop out.
Heres a pic for your click .....
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I was searching but I can't find any DYI's on turning your Daytime Running Lights off on our cars. I don't feel like buying a euro switch right now. How to do this or has done this to their vw's?
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I was following the directions on the APR site to remove the ECU and it seems to not make sense. Saying the ECU is on the passenger side underneath the molding....
is the ECU in the center?
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