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Codes 3 & 15

Old 07-13-2008, 06:06 PM
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Default Codes 3 & 15

Hi, Does anyone have any help on codes 3 & 15. I know what the codes are from the service manual and have done everything except replave the ecu. I have replaced the o2 sensor and the cas. I have a bipes and a olderguy's o2 clamp installed on the car. It is a 93 with a 1.6 and intercooled greddy setup. I didn't want to replace the ecu so any help is appreciated. Thanks
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Old 07-16-2008, 01:46 AM
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couple guys are experts on, i had my trouble with codes as well so i posted and was responded few minutes after my post is offline  
Old 07-16-2008, 06:35 AM
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I suppose because you say you've replaced the o2sensor and the CAS that a code 3/15 covers those 2 items? OBD1 usually just tells you what part is faulty, but nothing specific. Grabbing a spare ECU and swapping it in would cover a lot of ground for you. You don't have to buy a new one.
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