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This is not a new or an original idea from me, but it sure fixed my deep sump PVC valve and figure I would post details for those pulling their hair out trying to come up with a solution to this problem. After I did this, reset the ECM, my BLMs went from 134-136 idle, to a "perfect" 128 even after I drove the car around to let it relearn. Also, cruise BLMs appear to be more stable and don't jump around as much. My guess is that all the oil in the PVC valve made the valve sticky and caused air flow problems.
First, take your original stock passenger side valve cover breather with rubber elbow still attached, remove the oil soaked fiber from the inside of it with a pair of needle nose pliers and clean the breather with degreaser. Take exactly one ply of a paper towel and stuff it back into the breather leaving the screen intact. NOTE: If you don't have your original breather anymore, www.gbodyparts.com carries them and the elbow.
Second, take a hacksaw to a new PVC valve and cut off a portion or all of the lower nipple. Now place the PVC valve in the rubber elbow, cut length of fuel hose to fit up to vacuum block, and VOILA!
Third, either just leave the old PVC valve in the intake valley as it won't cause a problem when no vacuum is applied to it. Or, be creative and hunt down something to plug the hole with.
SEE PIC:
First, take your original stock passenger side valve cover breather with rubber elbow still attached, remove the oil soaked fiber from the inside of it with a pair of needle nose pliers and clean the breather with degreaser. Take exactly one ply of a paper towel and stuff it back into the breather leaving the screen intact. NOTE: If you don't have your original breather anymore, www.gbodyparts.com carries them and the elbow.
Second, take a hacksaw to a new PVC valve and cut off a portion or all of the lower nipple. Now place the PVC valve in the rubber elbow, cut length of fuel hose to fit up to vacuum block, and VOILA!
Third, either just leave the old PVC valve in the intake valley as it won't cause a problem when no vacuum is applied to it. Or, be creative and hunt down something to plug the hole with.
SEE PIC:
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