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A 2019 Alfa Romeo Stelvio triggered a check engine light with code P250F, indicating low engine oil level. Diagnostics confirmed the oil level was correct, but lab scope testing revealed an erratic signal from the oil level sensor. Replacing the faulty sensor resolved the issue, restoring proper performance with no returning fault codes.

A 2020 Ford Transit Connect with a check engine light set code P2002-00 for a DPF system fault. Detailed diagnostics revealed an exhaust pressure differential sensor reading out of range despite proper power and ground. Replacing the faulty DPF pressure sensor resolved the issue, restoring proper operation with no returning fault codes.