What causes code P2187?
What Does P2187 Mean? Combustion engines run most efficiently when they maintain an air-fuel mixture ratio of 14.7 parts air to 1 part fuel. When there are more than 14.7 parts air to 1 part fuel in the air-fuel mixture, a lean condition exists and code P2187 is triggered when this is noticed at idle on bank 1.
What does System Too Lean at Idle Bank mean?
P2189 trouble code definition The P2188 “System Too Lean at Idle Bank 1” definition indicates that there is too much air and too little fuel in the air-fuel ratio detected by the ECM during engine idle.
Is a P2187 code bad?
Diagnostic trouble code (DTC) P2187 stands for “System Too Lean at Idle (Bank 1).” It indicates that your vehicle’s computer has detected a potential issue with the fuel mixture at idle. In an internal combustion engine, the air-fuel mixture is controlled by the powertrain control module (PCM).
Is it bad to run an engine lean?
In combustion engines, “running lean” goes beyond using gas efficiently. In effect, that status makes the engine perform with less gasoline than it needs to operate properly, and it increase the amount of friction between the engine’s moving parts. Running lean can damage an engine.
What is system Too Rich Bank 1?
System too rich bank 1 means that the oxygen sensor in bank 1 identified a rich situation (presence of inadequate amount of oxygen in the exhaust). The detection of too much fuel mean that there is insufficient oxygen. Bank 1 is technically cylinder 1, which is the area of the vehicle’s engine with the first cylinder.
What is code P2198 mean?
What the P2198 code means. This trouble code indicates that the upstream oxygen sensor on the second bank of the exhaust is sending a reference voltage to the powertrain control module that is not within the range of acceptance set by the vehicle manufacturer.
What is code P2179?
What the P2179 code means. This code indicates that there is a lean air fuel mixture on bank 2 of the engine. Bank 2 refers to the set of cylinders that does not contain cylinder number one.
What does the p2187 OBD-II fault code mean?
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.
How much does it cost to diagnose a p2187 code?
The cost of diagnosing the P2187 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
Why is the p2187 code leaking into the intake manifold?
Additional codes to pinpoint cause of original P2187 code Air leaking into the intake manifold downstream from the Mass Airflow sensor due to the manifold itself, vacuum hoses off or cracked, leak MAP sensor, Leak at turbo bypass or it’s stuck open, power brake booster hose, or a leak in the EVAP system hoses.
Is the code p2189 the same as Bank 2?
Code P2189 is the same code but for Bank #2. There is a laundry list of components that could cause this scenario. For the most part the diagnostic procedure is not difficult — just time consuming, unless it is one of the first items checked.
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