justreplaceEGRvalvebutstill p0401 codecoming up and engine light still on on 1997 Toyota Corolla

p0401 code coming up and engine light still on all tests on egr valve are valid

by in Hemet, CA on January 31, 2012
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1 answer
ANSWER by , January 31, 2012
possibly your vac. amplifier,very common with older toyotas