P1109 on the 2010 Lotus Evora
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| sb_2020_01 | 2020-06-01. Service bulletin. Any unauthorised modifications, including fitment of non-approved after-market air filter resulting in generation of diagnostic trouble codes (DTC’s) P0101 & P1109. We have had several instances where DTC’s P0101 & P1109 had been set and the car recovered into the dealer, only for them to find that the original equipment engine air intake filter had been substituted for a non-approved after-market type (applicable to both dry and oil coated types). |
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1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.