View Full Version : Intermittent Rough Start
2pointOh
01-12-2014, 01:47 PM
Idk why but I can never find anything using the search on this site. Maybe I'm just missing something.
But anyways, I'm getting an intermittent rough start on my 2.0t, at about 118,xxx miles. Seems to only happen every now and then when the car has sat overnight. It'll crank for longer than normal before it catches. Once it ignites it runs fine however. Today was the worst one yet, took about 3 seconds to turn over. Its 34 degrees here so not too cold, but maybe that has something to do with it? Like a battery thing?
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Sweir1171
01-12-2014, 01:52 PM
Possible N80 valve.
Mine went at 120k. Had rough starts after it sat all night or after filling up at the gas station.
Cheap and easy fix if so....
2pointOh
01-12-2014, 01:59 PM
^ thanks for the reply. Any way to test it? I'll be doing a TB job soon so I may just add it to the list of things I'll do then too.
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OP, may want to take a look at this. http://www.audizine.com/forum/showthread.php/571913-Cold-starting-issue
schirm
01-13-2014, 07:51 AM
http://www.audizine.com/forum/showthread.php/576459-Red-R8-coil-packs-on-special-at-GAP-15-80
2pointOh
01-13-2014, 10:59 AM
OP, may want to take a look at this. http://www.audizine.com/forum/showthread.php/571913-Cold-starting-issue
Thanks man. So really, worst case scenario, ~$200 starter. Not awful. Hopefully I can wait on this till summer. I'll get my battery tested too, the car is new to me so I don't know if its original or not
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4rings5stars
01-13-2014, 02:19 PM
Thanks man. So really, worst case scenario, ~$200 starter. Not awful. Hopefully I can wait on this till summer. I'll get my battery tested too, the car is new to me so I don't know if its original or not
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If it cranks, it's not the starter.
2pointOh
01-13-2014, 03:31 PM
If it cranks, it's not the starter.
Battery then? It did it mildly again today and it was 50 degrees. Im really hoping this doesn't create a big problem fast, too many other maintenance things to do first.
Dregalia91
01-13-2014, 03:40 PM
Try spark plugs, coil packs,camshaft position sensor, n80 lol so much stuff it could be
2pointOh
01-13-2014, 03:59 PM
Try spark plugs, coil packs,camshaft position sensor, n80 lol so much stuff it could be
[headbang] Hahah I have too much on my plate for this! Currently need to do rear sway links, timing belt, and possibly rear subframe bushings (I didn't think those fail regularly..)
Dregalia91
01-13-2014, 04:04 PM
[headbang] Hahah I have too much on my plate for this! Currently need to do rear sway links, timing belt, and possibly rear subframe bushings (I didn't think those fail regularly..)
Just crazy how being a member on this forum makes me so worried about my car, I'm replacing shit that there is nothing wrong with! Hahaha wouldn't have it any other way
2pointOh
01-13-2014, 04:06 PM
Just crazy how being a member on this forum makes me so worried about my car, I'm replacing shit that there is nothing wrong with! Hahaha wouldn't have it any other way
Couldn't have said it better myself haha. I just got this car so I have no idea whats been done maintenance wise so... looks like I'll just do everything.
Dregalia91
01-13-2014, 04:17 PM
That's what I'm in the process of doing
Sweir1171
01-13-2014, 04:20 PM
Pull your n80(it's easy takes 5 minutes) try and blow through it both ways. It should only flow one way.
It's a cheap part from the dealer and worth a shot. It worked for me
Have you tried scanning your car for codes?
2pointOh
01-13-2014, 04:25 PM
^ haven't scanned yet. I'll stop by advance auto parts tomorrow and have them do it. But I'll try the n80 test, thanks man
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2pointOh
01-15-2014, 05:42 PM
Alright so I had my battery tested, totally fine. Going to get codes scanned tomorrow. I'm reluctant to think its the starter because those other threads make it seem like there's a moment of nothing between turning the key and it starting to turn over, whereas mine starts to turn over but takes a while to ignite.
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Dregalia91
01-15-2014, 06:19 PM
Alright so I had my battery tested, totally fine. Going to get codes scanned tomorrow. I'm reluctant to think its the starter because those other threads make it seem like there's a moment of nothing between turning the key and it starting to turn over, whereas mine starts to turn over but takes a while to ignite.
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Idk if this is a real cure to the problem or not, but I had the same issue as you.. What i did was turn the key to the on position and let it sit there for 3-4 seconds, then turn the key to start the car and it fires right up
2pointOh
01-15-2014, 06:22 PM
^ hmm good idea I'll give it a try tomorrow
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2pointOh
01-16-2014, 07:12 AM
Idk if this is a real cure to the problem or not, but I had the same issue as you.. What i did was turn the key to the on position and let it sit there for 3-4 seconds, then turn the key to start the car and it fires right up
Did this today while it was 28 degrees out, definitely helped. Started right up as it should, thanks for the tip
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Dregalia91
01-16-2014, 07:14 AM
Did this today while it was 28 degrees out, definitely helped. Started right up as it should, thanks for the tip
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Yeah glad it worked for you! I'm probably wrong but I think what it does it injects fuel or something, at least thats what I think I'm hearing when I turn it to the on position for a couple seconds then start it
2pointOh
01-16-2014, 07:16 AM
^ Yeah I definitely heard something. Or even just takes a second to sync up in the cold haha who knows.
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