Malfunction Flags

[Scot Sealander]

bruce plecan wrote:
> 
> Can anyone speak with authority, and say that once you
> turn off a diagnostic flag if the ecm still runs the test.

Yes, it depends on the application.

> Jus by driving, I'd say  the EGR test on my 747 does, but not
> absolutely positive.

Your 747 does not run the EGR test if the EGR diag bit is disabled.

Scot Sealander   Sealand at clarityconnect.com