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Originally Posted by scottl101
I have a 1998 S10 2.2L. My check engine light came on and gave a code of P1404. So I replaced the EGR valve. That fixed it for about 1 day, then it came back on. Is there something else that would cause this?
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I have a 94 S10 4.3 and had the same EGR Valve problem. I took off the EGR valve located on the front of the engine. Cleaned out 2 small chunks of carbon holding the plunger open. And cleaned it out with some cleaner to remove any other carbon inside. It's run great ever since.