GTI 337/20th Anniversary :: Rough At Idle And CEL Would Flash While Driving Then Stay Solid While Stopped
Mar 29, 2012
So my car started to misfire when under boost so I had the car scanned the first time and came up with codes P0302, P0303, and P0304 which are all for misfires. I replaced the coil packs not even a year ago and the car drove fine as long as I wasn't in boost. My rpms would fluctuate a little bit but not much. I changed the spark plugs and it seemed to work a little bit but it would still misfire under higher boost. The one thing I noticed was my vacuum sits at around 15-17 in when it used to be around 19-20. I've cleaned and disconnected the MAF and the idle didn't improved. I also cleaned the MAP sensor and AIT and the CTS is new. I've done a pressure test and I found some leaks and fixed them but still no luck. Then yesterday my car started running really rough at idle and the cel would flash while driving then stay solid while stopped. Got the car scanned today and got codes P0300, P0301, P0303, and P0304.
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So I was warming up my car after work tonight, and it was idling really rough right above 1RPMS and i heard a lil knocking noise from the engine what could have caused this? I was parked on a slight hill but i doubt that has something to do with it.
Also my buddy told me a way to see if my clutch was going out, is to try and kill the car while in gear, so i tried 1st time it shook really really bad but didn't die. So I tried again and it seemed like it was trying to catch its self and then shook bad again and then died. I did this in 1st gear just letting off the clutch before giving it gas. Does this mean my clutch could be going out already? the car only has 63k on it...
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Have a jazz blue chipped tuned with giac.. It does this random times.. When I come to a red light on idle the rpms go up and down just a bet but never stalls. The car vibrates and the engine shakes a bit. Engine is stable when car is on and off. Idk if its motor mounts or what?
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I did a tune up on my 20th last week, plugs and coil packs and oil change. now i have a strange idle that it wasn't doing before. i checked all the plugs over again and they are gapped fine and i have no CE light on. Every now and then my RPM meter will jump down and then right back up, same with the boost meter at the same time. i had it looked at at the garage i go to and they said they cant seem to find anything wrong. What might be causing the rough idle? keep in mind this only started happening RIGHT after the tune up.
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Just checking in to see where you'd recommend to start looking for a rough idle issue. It seems to get worse once the car fully warms up. I took a vid, and although it may not seem horrible in the video, it sometimes causes throttle lag from a stop and causes the car to get close to stalling when falling from high RPM's. Take a look at the video .....
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I am after a annoying dash noise that I get when driving over any rough surfaces. I have removed all centre console and glove box and everything else around that area and I still have the noise, its like the dash is loose some where else, I have looked around for a complete dash removal instruction thread, but can not find anything??
It looks like I will have to remove the whole dash but really could do with some instructions on how to do this as I don't want to break anything!
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So I go and get my oil change on Sunday at a local place. Oil change is done and later that evening my engine light comes on (solid orange). I call the local VW service and they say its nothing to worry about. "Maybe a little moisture got inside my gas tank." The service manager said to continue to drive it like nothing is wrong and it should go off. Here I am two days later and its still on. So should I be worried?
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I had my first and second gear go out on my gti over a month ago, it sat at my house for a little over 2 weeks. When I finally was able to take it to the transmission shop it needed a jump. A week later my transmission was rebuilt and clutch replaced. Car needed a jump when leaving the shop too.
I took it home and a bit later tried to go somewhere and... nothing. Completely dead, won't charge or be jumped. Sunroof was half open and windows cracked. Rained that night so I had a make-shift cover with trash bags and a container top. (I don't know if this matters but just in case it may be water related.)
The next day I got a new battery and changed it. Car worked fine for 2 days. This morning I tried to start it and it fluttered and battery completely shut off. Jumped it and tried to take it around the block after few and it shut off mid drive, but was able to restart while rolling. Then when I pulled over and hit the four ways it immediately shut everything off again. I had someone come with cables so I could just get it home, and as soon as I connected the red cable to + it sparked and the lights and everything turned on, started right up. (the jumper cables were not connected to anything on the other side)
Finally I got it back home and when I pulled into the driveway and stopped I hit the window buttons and boom, everything off again.
Confusing story, but what could be wrong? I included everything just in case. (I have 2 keys, one which keyless entry works and one which it doesn't as of recent. I have used both. Don't know if immobilizer could be it either.)
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I just had the clutch replaced and immediately noticed the door open light on the dash wouldn't go off. I tried all the door, hatch and hood to check and it stayed on. Even if I turned off the interior lights, the interior marker light on the bottom corner of the passenger side door only will stay on, the drivers side goes off. I already called the place where the clutch was done and he said to bring it in and he'll take a look at it....which I'm doing today..... What the cause could be. Maybe the door switch is faulty?
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20th Anniversary sat for 2 months and battery was flat when I went to start it today. I jumped it and got it running. However, when I went to close the hatch it will not stay latched. The latch on the hatch is hitting the striker on the lip of the trunk, but it just won't stay shut. Is any part of the latching mechanism electronically or vacuum operated?
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Okay, I just bought the truck (all stock except for straight pipe and cai). Nothing bullet proofed yet. It has 125,xxx miles on it and for the 4 months I had it I had no issue. Well now while idling or driving the glow plug light will flash on then off and stay off. I'll have no power and after a few minute it'll die on me. But start right back up. Is this a harness issue? 2006 6.0.....
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Today I got my car inspected (05 gli) and after the inspection, when I was driving home and went to a gas station. When I turned my car off and got out the radio (monsoon) stayed on. Then later when I opened my door the dome light did not come on. Passenger door turns light on and shuts radio off. I believe it is a door sensor? Where is this located and how do I change it or any other possibilities of what it could be? I did some research, and I have no issues locking the doors (security light blinks) and the passenger door works fine. Hoping there is a way to fix this without buying a whole new lock mechanism.
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For some reason BOTH my sidemarkers stopped working. Would it be a fuse? if so, which fuse would it be? fuse map in fuse box doesn't show sidemarkers.
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My main fan stopped working yesterday, I can't figure out if I need just a new fan or the entire motor assembly. How to diagnose the exact problem....
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My buddys mk4 GLi headlights and signals just stopped working if he holds the stalk in position the brights will come on but that's it. The car is a 2005 GLi with a euro switch, Were going to replace the switch in a little bit, as of now all fuses seem fine.
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So was driving my VW.. AC Was working fine. Then all of sudden nothing but hot air goes through the vents. So.. my question is. What could have caused this? I am not very knowledgeable when it comes to cars and their parts..
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My 1996 GMC Sonoma's turn signals don't flash. The signal bulbs do come on when I flip the switch and I can simulate a turning signal by clicking the switch up and down (which doesn't make me feel silly at all, btw). All six bulbs appear to be working and I can't find any blown fuses. I have also replaced the multifunction switch (which is what two different mechanics told me needed to be done).
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my 20th feels a bit off when im shifting. First to second can feel very rough (just not smooth at all but it does shift easily but takes more effort for a smooth shift. second to third is also a bit off but not as much. all other gears shift normal and smooth.
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All the sudden i cant lock or unlock my doors with my fob.
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Sometimes my battery light will come on. It started happening about a few weeks ago. At the time i was on the parkway so i couldn't pull over and it was flashing a few times then stopped. It started doing it more often, now it did it around town so i would slow down and i could hear the belt squealing. It just happened again and this time my car sorta lost power but only for a second. Now my question is, how would i check if its
a) alternator,
b) the belt or
c) the tensioner?
Or, I won't know til i start messing with it?
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I have a mk4 gli with 150k. I have a rough idle and it sucks... I changed my air filter, sparkplugs, coils, changed my oil, and cleaned all my sensors... I have an apr chip on it as well but no other modifications and I only use the chip here and there...
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