What is error code P2187?
The P2187 OBD-II fault code means the vehicle’s on-board computer has detected a lean fuel mixture at an idle in either Bank 1 or Bank 2 (the side of the engine with the corresponding number on the cylinder, if applicable). A lean fuel mixture means there is an excess of air and a shortage of fuel.
What does error code too lean off idle mean?
Specifications on the definition, troubleshooting, and repairs, of course, vary from one make and model to another. Error Code P2177 means a problem with the Bank 1 being too lean off idle. This means that the air-fuel mixture is too lean for the Bank 1 half of the engine.
How to check for system too lean off idle bank?
To diagnose for this code, technicians use a scan tool to check for the stored code in the PCM. Then, takes note of all codes present and record the freeze frame data associated with the codes. The codes are then cleared for a fresh start.
When do you know you have a lean code?
Step 1 – Once a check engine or service engine soon light has determined a lean engine code has materialized, a repair procedure inspection is needed. Explanation: A lean code is enabled when the computer has detected enrichment adjustments have maxed out, with no results, this inability triggers the lean code.
How to fix automotive engine lean exhaust codes?
Begin with the vehicle parked on flat ground in park with the emergency brake set. Step 1 – Once a check engine or service engine soon light has determined a lean engine code has materialized, a repair procedure inspection is needed.
What is the code for system too lean at idle?
P2187 – System too lean at idle, bank 1 Trouble Code Fault Location Probable Cause P2187 System too lean at idle, bank 1 Fuel pressure, injectors, intake leak
Is there a system too lean at idle bank 2?
However, if “Bank 2” is affected, the problem is indicated by code P2189 – “System Too Lean at Idle Bank 2”, but the diagnostic and repair procedures for this code are generally the same as for P2187 – “System Too Lean at Idle Bank 1”. END OF SPECIAL NOTES.
What to do if your lean code is incorrect?
Using sensor safe carburetor cleaner to clean this filament can sometimes remove these deposits allowing the sensor to obtain a correct reading. Step 6 – Testing the exhaust system oxygen sensors can help determine the functionality of the sensor. If the sensing element fails, feedback information will be incorrect causing a lean mixture code.
Why does my car have a lean code?
If the sensing element fails, feedback information will be incorrect causing a lean mixture code. Step 7 – When an engine misfires an almost clean charge of oxygen is released into the exhaust system. This will cause the exhaust system to test lean as tested by the O2 sensors, this can sometimes be fixed by a tune up .