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Hi, I've recently replaced the intake gasket on my D17 to correct a recurring EGR code. While I was in there, I replaced all four injectors with new ones that were advertised as being OEM Honda. There is some intermittent hesitation and stumbling now when driving. Is this expected as part of a relearn process? Thanks.

 
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i got similar problem here. after clean and replacing E.G.R. and I.A.C. valve gaskets the car still vibrating like before and die at a stop light or while idling. now when i went to Oreillys for second time, they say is cylinder #2 spark plug because the misfiring condition. i did it and no change at all.

 
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Wouldn't hurt to try. Did you use the intake gasket with the egr holes? Did you clean the passages in the intake?

 
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I did. I found the thread on this forum and sure enough, the wrong gasket was on the car. I put in the one with the holes and cleaned the passages pretty thoroughly. I may end up swapping the old injectors back in to see if that fixes it.

 
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Well, it finally gave me a CEL, which turns out to be a P0172. I probably didn't plug a hose back in properly. Will update when resolved.

 
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I was able to find the issue. Pulled the plugs and all 4 indicated they were running rich. I replaced the new injectors with the old ones, and that did the trick. Runs like a sewing machine now. 🙂