so after 650 miles the map sensor error came back. it seems it takes a very long time for the error to log. as I plugged in ISTA multiple times and could not read anything just the CEL

It appears at this point the fault is related to EGR checks performed by the MAP sensor since the CEL comes on only during coasting at low or no acceleration it appears its that specific test that I am failing.

when driving different roads that do not have downhill/coasting i can drive much farther without the cel.

My egr is deleted so Its a unique issue and will check with the tuner.