OK to start off let me give some specifics. Its my grandma's car, I do most of the work on it. It has 260k miles on it. I have just replaced both o2 sensors as they were original and the egr valve and plugs and plug wires. I was getting 2 misfire codes and the o2 codes, and a egr code. The cel came back on and it is giving out this one and only code. So what do I do?I was thinking about cleaning the intake manifold and egr valve out.
Joined: Tue Jun 17, 2008 7:06 pm Posts: 714 Location: Atlanta GA
easy way to check is with the engine at idle open the egr valve and the engine should stall or idle extremly rough. if not then the passage is clogged.
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