Code 6 on EA/CC/ISC is NSS switch contacts on that chassis.

You are not getting any codes on 19 b/c that is DM and DM will not report back any info until the car has done ALL emmissions self-test. That is N/59 Emmissions module and is the same as P/Button that you cleared the codes for CE with.

Code 19 coupled with 4 from DM would be b/c of vac leak from AIR system.

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A Dalton