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idle problem

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Old Mar 22, 2007 | 11:14 PM
  #16  
NoRiceInside's Avatar
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wow i finally got it. i feel stupid, as most people do when they finally figure it out.

i replaced my EGR valve. it fixed it. i still feel a SLIGHT miss occationally and my idle is a bit bumpy, but then again it always has been. overall the idle is smooth as butter. no more missing at low speed, idle is solid.

apparently the pintle was sticking. i took the valve out and pressed the diaphram back and the pintle would follow until about halfway where it sticks until i jiggle it a bit and it finally drops, so i knew that had to be it.

i guess the egr being open caused the mixture to get screwy, preventing the cylinder from firing properly, resulting in a misfire, then since the oxygen in the mixture remained the same, that resulted in a lean reading. so it all stemmed from the EGR being stuck.
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