How to fix p0401 on a 1996 toyota avalon testing the egr modulator valve duration 435 lodestar 53764 views how to remove install egr vacuum regulator duration 736. How do you replace the egr valve on a 1995 toyota avalon remove the modulator assy with its bracket its got a short hose on it that attaches to the stainless tube on the egr valve with all . Order toyota avalon egr vacuum modulator valve online today free same day store pickup check out free battery charging and engine diagnostic testing while you are in store. 2001 camry 4cyl 22 p0401 egr insufficient egr flow and p0402 egr excessive flow detected we replace vsv modulator egr ports are clear egr valve ok also we replace map sensor still same problem read more
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