Fault code P1027 tends to appear together with a noticeable drop in performance, which makes it one of the codes worth taking seriously rather than clearing and ignoring.
What P1027 Points To
This code is typically related to the exhaust temperature sensor circuit reporting a value the ECU considers implausible, which can lead to a protective power reduction.
Confirming and Clearing It
Checking exhaust temperature and sensor circuit data live with the M-JET DIAGNOSTIC tool shows whether the sensor, the wiring or the connector is at fault before you order a replacement part.
