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Discussion Starter · #1 ·
ok so i have a 96 ss impala n the check engine light came on. i hooked up a obd2 meter to it n it comes out with the code po400 egr. it has 92,000 miles on it n i can also hear a little tick ever couple seconds in the engine when it idles do i need to replace the egr valve n is it a pretty simple job to do?
 
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