McDonald Posted August 21, 2022 Report Share Posted August 21, 2022 My 987.1 failed the MOT as Lamda readings were a little high. On inspection, the exhaust seems fine. Technician says it may be an electrical fault or problem with engine management ( no light showing). What kind of issues might cause this? The car runs very nicely. Quote Link to comment Share on other sites More sharing options...
SpeedyGee Posted August 23, 2022 Report Share Posted August 23, 2022 Get an OBD reader connected up and see what the live are readings tell you. Quote Link to comment Share on other sites More sharing options...
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