plz help car misfireing bad i think plugs etc
28 March 2009, 07:46 PM
#1
Scooby Regular
Thread Starter
iTrader: (5)
Join Date: Nov 2008
Location: kent
Posts: 488
Likes: 0
Received 0 Likes
on
0 Posts
plz help car misfireing bad i think plugs etc
car has been idleing funny since i bought it now wont boost and missfireing very bad u can pull each lead of and engine revs lower but wen i remove 1 lead it dosnt make any difrence is this one of my plugs gone? also only started wen i drove it 2day.
28 March 2009, 07:57 PM
#2
Scooby Regular
Join Date: Dec 2008
Location: Essex
Posts: 165
Likes: 0
Received 0 Likes
on
0 Posts
Hi i would try swapping this lead with another cylinder and see if fault moves. This lead going down should not stop the turbo spooling up i think? check plug and maybe compression test cylinder. what year is your scoobie there are 2 types of boost ports fitted if you search then it will tell you how to clean it.
hope this helps, john
hope this helps, john
28 March 2009, 08:28 PM
#4
Scooby Regular
Thread Starter
iTrader: (5)
Join Date: Nov 2008
Location: kent
Posts: 488
Likes: 0
Received 0 Likes
on
0 Posts
when i remove the plug lead marked in picture it makes no diffrence at all but wen i remove any other 1 idle drops also coil pack pack has bright blue sparks also all leads spark ok with no faults
29 March 2009, 05:41 PM
#6
Scooby Regular
iTrader: (22)
Join Date: May 2006
Location: Doncaster, S. Yorks.
Posts: 21,415
Received 0 Likes
on
0 Posts
Hi i would try swapping this lead with another cylinder and see if fault moves. This lead going down should not stop the turbo spooling up i think? check plug and maybe compression test cylinder. what year is your scoobie there are 2 types of boost ports fitted if you search then it will tell you how to clean it.
hope this helps, john
hope this helps, john
Tommy, get it to a specialists who can do all the necessary tests fella
Trending Topics
29 March 2009, 06:33 PM
#8
Scooby Regular
Join Date: Dec 2008
Location: Essex
Posts: 165
Likes: 0
Received 0 Likes
on
0 Posts
I hope you're joking or Impreza's are different to other cars, as I have it under good knowledge if you swap HT leads from one cylinder to another it can bugger the timing and cause cylinder damage. I know this is the case for my 205GTi and would assume the same for a boxer engine also
Tommy, get it to a specialists who can do all the necessary tests fella
Tommy, get it to a specialists who can do all the necessary tests fella
If you want to check the lead for that cylinder then remove it from coil pack and replace it with one that works. you will not alter the timing in any way.
29 March 2009, 06:56 PM
#9
Scooby Regular
Thread Starter
iTrader: (5)
Join Date: Nov 2008
Location: kent
Posts: 488
Likes: 0
Received 0 Likes
on
0 Posts
when i remove the lead thats circled u can see the spark and its sparking alot about 5 times a second at least
Last edited by TOMMY_TURBO; 29 March 2009 at 06:58 PM.
30 March 2009, 03:44 PM
#11
Scooby Regular
Thread Starter
iTrader: (5)
Join Date: Nov 2008
Location: kent
Posts: 488
Likes: 0
Received 0 Likes
on
0 Posts
i have also noticed that it somtimes back fires through maf also is smoking blue smoke im now thinking could it be a valve iv unpluged maf when running and it stalls i have also just bought a new coil and leads just got to wait to receive them now also goin to do compression test im crossing my fingers that compression is ok does any one know what compression should be
im hopeing it is just the coil
im hopeing it is just the coil
Last edited by TOMMY_TURBO; 30 March 2009 at 03:45 PM.
HELP
31 March 2009, 12:07 PM
#13
Scooby Regular
Join Date: Nov 2005
Posts: 969
Likes: 0
Received 0 Likes
on
0 Posts
Doesn't sound good mate. The smoke means there's something amiss, and couple that with the missfire I would guess that the problem cylinder will be down on compression.
I don't know what the compression should read (I think it's around 90psi, but I may have made that up...), but if you test all the cylinders it will be obvious which one is low and by how much.
Good luck.
I don't know what the compression should read (I think it's around 90psi, but I may have made that up...), but if you test all the cylinders it will be obvious which one is low and by how much.
Good luck.
Thread
Thread Starter
Forum
Replies
Last Post
aaron_ions
General Technical
17
03 November 2021 11:07 AM
ossett2k2
Engine Management and ECU Remapping
15
23 September 2015 09:11 AM