Ford Sierra/Sapphire/RS500 Cosworth This forum is for discussion of all things pertaining to the Ford Sierra Cosworth.

Flow chart to diagnose misfires

Thread Tools
 
Search this Thread
 
Old 15-04-2010, 04:30 PM
  #1  
Char1ie
I've found that life I needed.. It's HERE!!
Thread Starter
iTrader: (6)
 
Char1ie's Avatar
 
Join Date: Mar 2007
Posts: 1,285
Likes: 0
Received 0 Likes on 0 Posts
Default Flow chart to diagnose misfires

There are so many "I have a mis-fire" posts about Cossies and so many causes of mis-fires. Has anybody ever considered building a flow chart with all the causes and effects and possible things to check?

It strikes me that between us we could create a simple chart that allows for any fault to be found in a logical order:

I have a misfire
Is it on boost or at low revs or all through the revs
If it's on boost check the following items in the following order
etc etc

People regularly fit loads of new bits - engine sensors, fuel filters, etc without curing the problem but it must be possible to diagnose exactly where the problem lies with a logical process. I ended up going with a new ECU and loom for reliability.

Any thoughts? Is it worth trying to do this collectively?


Charlie
Old 15-04-2010, 04:44 PM
  #2  
james kiely
10K+ Poster!!
iTrader: (5)
 
james kiely's Avatar
 
Join Date: Feb 2008
Location: god knows
Posts: 12,890
Received 428 Likes on 403 Posts
Default

absolutley charlie.i was thinking the same myself as their is so much expierience on this site it has to be worth doing.make it a sticky
Old 19-04-2010, 01:23 PM
  #3  
DaveCrack
Too many posts.. I need a life!!
iTrader: (1)
 
DaveCrack's Avatar
 
Join Date: Jul 2007
Location: Munich/GER
Posts: 662
Received 7 Likes on 7 Posts
Default

Here's a pretty nice flow chart for misfire diagnosis:

http://www.cosworth-turbo-parts.de/C...i_technik.html

Unfortunately its german, but you get the idea behind it.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Rob Wells
Ford Mondeo Including ST
6
18-04-2023 12:19 AM
abz474
Cars for Sale
9
01-11-2015 06:53 PM
dalmarshall
Ford Classics & Vintage
2
01-10-2015 06:46 PM
fordrallycar
Ford RS Cosworth Parts for Sale
0
30-09-2015 07:57 PM
natehall
Ford Focus (All Models)
5
08-09-2015 05:13 AM



Quick Reply: Flow chart to diagnose misfires



All times are GMT. The time now is 08:47 PM.