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Old 11-30-2011, 09:57 AM   #18 (permalink)
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Originally Posted by euromodder View Post
Why don't they keep the EGR valve somewhere under the hood, but not connected to the exhaust or intake ?
I.e. working, but not functional, so it won't throw fault codes.

There's usually no EGR flow measurement, or is there ?
While not a diesel my 99 maxima had a CEl with a code for egr flow volume. The supply tube from the exhaust was plugged. Cleaned the tube and cleared the code, no further codes.
No reason why a US emissions spec diesel would not have the same OBD2 code as a 12 year old Maxima.

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