Question about 1998 Chevrolet Blazer

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Hello - have a 1998 chevy blazer with a p0301 code. Know that cylinder 1 is the problem. New plug on cyl 1, and know it's not the wire. Also put new cap and rotor on. Any suggestions on what to do next?

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If your Blazer has a "VORTEX" engine, the the fuel injection system will cause this DTC. Under the intake plenum ( that big plastic cover) is a spider legs injection system. that is one main body and up to eight legs that simply clip into the heads. Over time, crud gets into the passage that the injector goes into and causes the tip(s) to get dirty and the only way to clean it is to remove the system and clean all the tips.

Posted on Mar 24, 2011

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