06-09-2012, 04:35 PM
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Join Date: Jan 2012
Location: Atlanta, ga
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Testing the EGR, how much Vacuum needed?
1997 Camry 4 cylinder with 313,000 miles.
Got the EGR P0401 code some time ago. Just got around to working on it.
I hooked a vac pump to the EGR and pulled vacuum with engine running with no effect. Decided to take EGR off and clean it. WOW. It was plugged at the intake port and the small port that hooks by hose(also plugged up) to the vac modulator. After cleaning with it off the car I tried to pull vacuum but the diaphragm did not move, If moves if I move it by hand but not with my pump. If I move the diaphagm by hand and put my finger on the port it holds the diaphragm in place. I fully cleaned the EGR(really blocked up!) but maybe I dont have enough vac to activate it...My pump goes to 25 inches or so... I reset the CEL and did a quick test drive but I need to drive it much more. Any thoughts? If I need to replace the EGR where is the best place to get it price/quality wise?
1997 Camry LE 4 cyl, 333,333 miles
2010 Camry LE 4 cyl, 50,000 miles