Ford Escort RS Cosworth This forum is for discussion of all things pertaining to the Ford Escort Rs Cosworth.

small turbo missfire, what causes them

Thread Tools
 
Search this Thread
 
Old Jul 29, 2008 | 07:36 AM
  #1  
The Youth.'s Avatar
The Youth.
Thread Starter
PassionFord Post Whore!!
iTrader: (1)
 
Joined: May 2003
Posts: 8,952
Likes: 55
From: stockton on tees
Default small turbo missfire, what causes them

I have an on boost missfire that has recently started, I changed the plugs thinking it was that to no avail, it only does it when it's hot which leads me to think that one of the coil packs is on it's way out, can these be tested?
anyone got experience of this?

cheers

steve
Reply
Old Jul 29, 2008 | 12:22 PM
  #2  
Robski's Avatar
Robski
Too many posts.. I need a life!!
 
Joined: Jul 2003
Posts: 893
Likes: 0
Default

mine did this along time ago,changed the coil pack and it cleared up....i'd try and find a spare one off Ebay and try it
Reply
Old Jul 29, 2008 | 12:33 PM
  #3  
llw's Avatar
llw
Regular Contributor
 
Joined: Dec 2004
Posts: 222
Likes: 0
From: Birmingham
Default

mine was doing this for a long time

got some coil packs off ebay but still the same

then decided i gonna mix and match the coilpacks and see what happens, on the first go it was fine, been fine ever since over 9 months and massive 150 miles probably since
Reply
Old Jul 29, 2008 | 05:13 PM
  #4  
oilcosworth's Avatar
oilcosworth
Too many posts.. I need a life!!
 
Joined: Sep 2004
Posts: 625
Likes: 0
From: REVO
Default

Mine also dun this i found it to be a coil pack as well
got mine off dunc at www.automotiveunlimited.co.uk
Reply
Old Jul 29, 2008 | 05:45 PM
  #5  
stevev6's Avatar
stevev6
I'm Finding My Feet Here Now
 
Joined: Mar 2008
Posts: 145
Likes: 0
Default

Check the wiring around the tops of the coil packs and the connectors. Mine were bare just after the wires went into the coils itself. Really poor for this.

Also look at the multi plugs just under the header tank, grey and black 1s i think. If they are corroded etc clean the terminals etc.

Steve
Reply
Old Aug 7, 2008 | 07:26 AM
  #6  
RWD_cossie_wil's Avatar
RWD_cossie_wil
10K+ Poster!!
iTrader: (9)
 
Joined: May 2004
Posts: 11,919
Likes: 11
From: birmingham west mids
Default

Off to Stu now then mate?
Reply
Old Aug 7, 2008 | 07:10 PM
  #7  
MarkN's Avatar
MarkN
Too many posts.. I need a life!!
 
Joined: Oct 2005
Posts: 610
Likes: 0
Default

Have you checked the plug gaps? Small turbos are very sensitive about the plug gap. I had a bad missfire on mine on boost and regapping the plugs fixed it straight away.
Reply
Old Aug 7, 2008 | 09:45 PM
  #8  
AJC's Avatar
AJC
10K+ Poster!!
20 Year Member
Liked
Loved
Community Favorite
iTrader: (6)
 
Joined: Oct 2004
Posts: 13,368
Likes: 84
From: Preston, Lancs
Default

broken down coilpack?
Reply
Old Aug 7, 2008 | 09:47 PM
  #9  
Cossie Sean's Avatar
Cossie Sean
big floppy donkey dick
 
Joined: May 2003
Posts: 4,514
Likes: 3
From: Rouse Sport heaven ;)
Default

Steve gis a ring fella 07876 481 735

i might be able to help in me un-experienced guessing way lol
Reply
Old Aug 7, 2008 | 11:33 PM
  #10  
cosworth3d's Avatar
cosworth3d
Too many posts.. I need a life!!
 
Joined: May 2004
Posts: 694
Likes: 3
From: Holland
Default

I had that as well ,one coil pack let go i changed that all fine
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Matt Baxter
Ford RS Cosworth Parts for Sale
6
Sep 16, 2015 08:30 PM
Cosnada
General Car Related Discussion.
2
Aug 27, 2015 09:15 AM
IAN RS2k
General Car Related Discussion.
8
Aug 18, 2015 07:51 PM
fish6634
Ford KA
0
Aug 2, 2015 01:02 PM
ginger1979
Technical help Q & A
0
Jul 31, 2015 09:56 PM




All times are GMT. The time now is 11:14 PM.