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So the FiST 180 the other day came up with error code P2237
O2 Sensor Positive Current Control Circuit/Open Bank 1 Sensor 1
So as the turbo was replaced last year we decided to run some STP Lambada Cleaner through the fuel system to see if that would clear any soot / carbon from the Upstream O2 sensor incase any contamination from blown turbo built up on or in the Lambada O2 sensor.
Alas this did not work, even after clearing the fault code, so decided to replace the existing upstream Lambada sensor with a Bosch Lambda Sensor Pre Cat 0258017444.
Original Lambda Sensor was a fiddle to get out and new one replaced, a couple of pictures to show what a faulty Lambada sensor can look like with too much carbon build up.
Comparison of New Bosch Lambda Sensor vs Original Lambda Sensor
Closer look at the two O2 Sensors
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