P2187 The engine runs lean on bank 1 at idle specifically
3 owner reports and 27 manufacturer filings across 24 model years from Honda, Jaguar, Land Rover, Mercedes-Benz.
Where P2187 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports | Parts |
|---|---|---|---|---|
| 2019 Land Rover Range Rover | Engine | 3 | — | |
| 2018 Land Rover Range Rover | Power Train | 3 | — | |
| 2017 Land Rover Range Rover | Engine | 2 | — | |
| 2016 Land Rover Range Rover | Power Train | 2 | — | |
| 2018 Honda Accord | Fuel/Propulsion System | — | 1 | Fuel pump → |
| 2019 Honda Civic | Fuel/Propulsion System | — | 1 | Fuel pump → |
| 2019 Jaguar F-Pace | Engine | 1 | — | |
| 2018 Jaguar F-Pace | Engine | 1 | — | |
| 2017 Jaguar F-Pace | Engine | 1 | — | |
| 2019 Jaguar F-Type | Engine | 1 | — | |
| 2018 Jaguar F-Type | Engine | 1 | — | |
| 2017 Jaguar F-Type | Engine | 1 | — | |
| 2016 Jaguar F-Type | Engine | 1 | — | |
| 2019 Jaguar XF | Engine | 1 | — | |
| 2018 Jaguar XF | Engine | 1 | — | |
| 2017 Jaguar XF | Engine | 1 | — | |
| 2016 Jaguar XF | Engine | 1 | — | |
| 2019 Jaguar XJ | Engine | 1 | — | |
| 2018 Jaguar XJ | Engine | 1 | — | |
| 2017 Jaguar XJ | Engine | 1 | — | |
| 2016 Jaguar XJ | Engine | 1 | — | |
| 2019 Land Rover Discovery | Engine | 1 | — | |
| 2018 Land Rover Discovery | Engine | 1 | — | |
| 2016 Mercedes-Benz CLA-Class | Electrical System | — | 1 | Battery → |
A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.
Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
P2187 by make
The same record, one make at a time: the model years, bulletins and owner reports that name P2187 on that maker’s vehicles.
What it gets filed under
What owners said
Source: NHTSA complaint databaseOwners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.
Diagnostic scan confirms permanent active codes P2187 (System Too Lean at Idle) and P0451 (Fuel Tank Pressure Sensor Performance), indicating fuel starvation from the recalled fuel pump assembly under the rear seat
27 manufacturer filings name P2187. Start with what the maker wrote down.
A code names the test that failed, not the part. A bulletin that names it is often a diagnosis someone has already written down — quote its number at the service desk.
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P2187.
- SSM74374 Service bulletin2019-04-10 · Engine
- Air leak from the right hand camshaft cover assembly due to a split diaphragm within the pressure control valve. Any of the following DTCs (indicating an air intake system leak) could be stored in the Powertrain Control Module (PCM) ? P2187, P2189, P0505, P0507.
- SSM74375 Service bulletin2019-04-10 · Engine
- Air leak from the right hand camshaft cover assembly due to a split diaphragm within the pressure control valve. Any of the following DTCs (indicating an air intake system leak) could be stored in the Powertrain Control Module (PCM) ? P2187, P2189, P0505, P0507.
What P2187 means
Source: SAE J2012 / OBD-IIThe engine runs lean on bank 1 at idle specifically.
A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.
Common questions about P2187
Source: NHTSA files and the OBD-II standardCan I keep driving with P2187 stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light means a fault was logged and the car should be checked soon; a flashing light means a severe misfire — slow down and get it seen as soon as possible, because severe misfire can quickly damage the catalytic converter. The safe read of this page is the mileage and the components, not permission.
Does a code mean the car is recalled?
No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.
Why do the counts here differ from other sites?
Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.
Will clearing the code fix it?
Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.