cosworth missfire
May 31, 2009 | 11:37 AM
Thread Starter
Joined: May 2009
Posts: 3
Likes: 0
From: Zimbabwe
cosworth missfire
I have a saphire cosworth with a bad misfire at idle and up to 2000 rpm . The plugs are new and injectors new , where do i start looking
May 31, 2009 | 01:23 PM
I've found that life I needed.. It's HERE!!
Joined: May 2007
Posts: 1,264
Likes: 21
From: norway
Check phase and crank sensor
May 31, 2009 | 03:53 PM
Joined: Jul 2006
Posts: 24,596
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From: uk
If it's ok after 2000rpm I'd also look at the co.
May 31, 2009 | 09:36 PM
Joined: Mar 2008
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From: brierley hill
compression?
Jun 2, 2009 | 06:55 PM
Thread Starter
Joined: May 2009
Posts: 3
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From: Zimbabwe
what is the gap supposed to be on the sensors , after 2000 rpm the car pulls well and clear
Jun 2, 2009 | 07:30 PM
Joined: Jul 2006
Posts: 24,596
Likes: 4
From: uk
Phase sensor is 0.2mm to 0.3mm
Jun 3, 2009 | 04:53 PM
Thread Starter
Joined: May 2009
Posts: 3
Likes: 0
From: Zimbabwe
thank you i will pull the feeler gauges out and start measuring
Jun 8, 2009 | 01:01 PM
Joined: Dec 2008
Posts: 2
Likes: 0
From: Ireland
Had the same problem. Changed every sensor plugs, leads, cap and in the end found the fuel pressure regulator vacuum pipe connector was sending fuel back into the plenum. changed the regulator and cured the problem.
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