Mini First 1.4 N12B14A 2009 - Vanos fault, codes 287D & 2870 - Fixed #
Posted by Martin Kelly on April 28, 2017, 9:26 am
Year of Manufacture *: 2009|
Engine Size and Code *: 1.4 N12B14A
( Optional ) Scanner Used: Verus
Fault codes logged
287D - Vanos Inlet actuator movement
2870 - Vanos Inlet adaption stop
Have fitted new inlet Vanos unit and solenoid valve, double checked timing.
Have swapped inlet and exhaust solenoid valves and cam sensors, no change.
At idle inlet set value is 60° but actual is 64 to 65°, at fast idle the 2 values match ok.
Exhaust values are spot on.
Drives ok for about 1/4 mile then 287D is logged and valve timing defaults to 120°, slightly more driving and 2870 is logged.
Before changing solenoid and Vanos, oil flushed, new oil and filter changed, gauzes on solenoids all clean.
Could this be a faulty Vanos unit or early sign of timing chain stretch?
Any suggestions welcome.