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Discussion Starter · #1 ·
I changed my plugs and wires the other day and noticed a slight miss at idle and a stumble at WOT around 4000 rpm's. I checked the codes and I get 31,34,13. All seem to be egr related except for 13. So, do I need to replace the egr valve or what?
 

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Discussion Starter · #2 ·
ok, I reset the computer (unplugged battery) then I warmed up the car completely and ran codes again. Now, I only get code 34. So, do I have a bad egr or what?
 
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