Compression for all cylinders is good. Have not checked injectors. How can one injector be bad when the engine runs perfect till warmed up? Numberer 2 spark plug has no sign of lean/rich problems. This is the confusing part for me. It runs perfect for the first couple of minutes. What happens when it starts to enter notmal operational temperature? I'm sure it's something simple im missing.
EGR valve was cleaned out and determined to not be able to seal completely. Maybe this is normal, but it's not completely air tight. EGR vacuum diaphram is functioning properly. I am assuming the EGR valve is in need of replacement, but am going to find out if filling lower chamber of valve with refractory cement and remounting it will alter my misfire issue.
This is my wifes winter car, so keeping it running 3 more months is all I need. Then I can do more extensive repairs on it.
Monday, January 10th, 2011 AT 1:19 AM