VTR 'spluttering'

1. user_29491 Saxperience Forum Bum Joined: Dec 2008 Lancs Posts: 4124 JP4S'd R.

   #1 24th April 2010, 21:21

   Recently this problem has started, it started off like a slight misfire when cruising at 30mph with slight throttle..
   
   however this problem has got worse, especially when cold.. it's barely driveable on slight revs, judders pretty violently.
   
   However if i have 1/2 revs or full revs it doesn't happen. And there is no loss in power, pulls through revs as it should.
   
   Service is due in 8k.
   
   My thoughts are the coilpack is on its way out? or when i had my head 'helicoiled' there may be some shards of metal on the plug causing it not to spark properly hence the misfires? or blocked injectors? Tryed redex, but didnt cure it.
   
   Just thought someone on here might of experienced this before, and could point me in the right direction before i go spending on new parts
   
   Any help appreciated!
2. marcusd Saxperience Post Whore Joined: Jan 2009 warrington Posts: 7551 posi blue mk2 2003 vtr

   #2 24th April 2010, 21:37

   having same prblems at mo. been told to check lamba sensor, and clean idle control valve to rule out the easy ones.
3. user_29491 Saxperience Forum Bum Joined: Dec 2008 Lancs Posts: 4124 JP4S'd R.

   #3 24th April 2010, 22:30

   I don't have any lamba sensors lol. Not been connected for 20k miles or so, and never had a problem before hand.
   
   I also cleaned the ICV recently, I'll just have to do my service early. New plugs etc, if that don't cure it, i'll try someones coilpack
   
   Knowing my luck, i'll do that.. and it'll be the injectors lolz.
   
   Just been out in the car, and it rarely does it when warm.. so it's weird.
4. marcusd Saxperience Post Whore Joined: Jan 2009 warrington Posts: 7551 posi blue mk2 2003 vtr

   #4 24th April 2010, 23:05

   mines only just been serviced too. before service only did it once, now doing it nearly everyday
5. user_15516 Saxperience Post Whore Joined: Apr 2007 Posts: 6640 Integra DC5R & VTS

   #5 24th April 2010, 23:18

   Try the MAP sensor on the inlet manifold. Remove it and give it a clean up with carb cleaner etc.

   1 user thanked this post: user_29491
6. user_29491 Saxperience Forum Bum Joined: Dec 2008 Lancs Posts: 4124 JP4S'd R.

   #6 25th April 2010, 19:54

   That cured the problem, many thanks!
7. marcusd Saxperience Post Whore Joined: Jan 2009 warrington Posts: 7551 posi blue mk2 2003 vtr

   #7 25th April 2010, 22:06

   gotta try this too. hopefully its sorted soon right annoying problem this is