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Old 10-04-2011, 06:21 AM
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HUMTECH HUMTECH is offline
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Join Date: Sep 2003
Location: Canada
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Default Re: several codes coming up need help please

check o2a fuse for o2 sensor codes. Knock sensor code most likely due to corrosion at sensor connector. If that is the case your best to replace both sensors and harness while you have intake off.
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1987 Jeep YJ 403hp sbc 653hp on NOS
1998 Chev Z71
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