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What do the codes, p1393, and p1406 represent? And what do I replace to remedy. on 1997 Honda Passport

What do codes p1393 and p1406 mean?

Asked by for the 1997 Honda Passport
1406 is egr issue. do not replace the valve yet. the code never identifies a bad part, just a failed syste. it may be a clogged intake manifold port.
the 1393 is a rough road sensor. once again, do not replace the sensor until it is checked out.

let a shop check these for you and give you a bid.

Roy
1 more answer
1406 is egr issue. do not replace the valve yet. the code never identifies a bad part, just a failed syste. it may be a clogged intake manifold port.
the 1393 is a rough road sensor. once again, do not replace the sensor until it is checked out.

let a shop check these for you and give you a bid.

Roy