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Old 23-04-2011 | 09:51 PM
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Default ecu help

Hi there can anyone tell me how to tell what cosworth ecu i have off the number's on it?

Thanks David
Old 24-04-2011 | 01:01 AM
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yes dave i can why have you not asked me about this befor

Last edited by COLEYST200; 24-04-2011 at 01:02 AM.
Old 24-04-2011 | 01:04 AM
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The ecu types

Level 1 ecu - WD45.01 IAW045
Used in the 3 door Sierra Cosworth.
The case has an integral mounting bracket, a yellow mixture adjustment screw and the driver transistors are screwed down.






Level 6 ecu - W45.06 IAW045
Used in the 2wd Sapphire Cosworth.
The case has an integral mounting bracket, a white mixture screw and the driver transistors are clipped down. Has roughly the same inputs as the level 1 but uses a few different ic types.





Level 8 ecu - WD48.08 IAW048/01
or WD48.08 IAW048/02
Used in the 4x4 Sapphire Cosworth.
It also has a white mixture screw but there isn't a case mounting bracket to differentiate it from the level 6. There are a lot more components inside due to the extra analogue inputs.
Red label ecu pre-cat model. Green label cat model.




P 8 ecu - IAW048/P8
Used in the Escort Cosworth (Big turbo version only)
Externally the ecu looks like a L8 but the mixture screw hole isn't drilled through the case because there isn't a pot inside. The circuit board has now started to use surface mount chips but the eprom is still mounted in a socket. There appear to be at least 2 different types of ecu used - some have a 14pin ic where the circle is on the picture and some don't.(Note - The standard ecu doesn't have a baby board fitted, unlike the picture).





Old 24-04-2011 | 06:55 AM
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Cheers Coley your a wealth of info


just gotta find out which onw i got now
Old 24-04-2011 | 07:10 AM
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Just checked and ive got a L6
Im running a 4x4 loom are these two compatable as the 4x4 runs lambda and knock sensor's ?
Old 24-04-2011 | 09:17 AM
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only the P8 ran the lambda
Old 24-04-2011 | 09:37 AM
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Not true, green top saffs were emission based and ran closed loop as standard
Old 24-04-2011 | 10:26 AM
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Originally Posted by James @ M Developments.
Not true, green top saffs were emission based and ran closed loop as standard
O right on which of the ECU,S was that on then James
Old 24-04-2011 | 12:43 PM
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L8 mate
Old 24-04-2011 | 11:00 PM
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I was sure id read that the L8 ran closed loop on the 4x4 saff


cheers for the reply's guy's
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