Can a weak fuel pump cause a lean condition?
A weak pump that isn’t delivering adequate pressure can cause an engine to run lean, misfire and hesitate when accelerating. The pump might be getting wear, a clogged fuel filter might be restricting fuel flow to the engine, or the pump might not be getting enough volts through its power circuit to run at normal speed.
Does Lean Mean not enough fuel?
Your engine runs lean if your air-to-fuel mixture is too light – this means that the fuel in your ignition chamber is being igniting with too much air or too little fuel. Because your engine is running on less fuel than it should, it is running “lean.”
What is the lean Bank 1 sensor 1 Code?
I am getting a code P0171 for lean bank 1 sensor 1. I have replaced the fuel filter, oxygen sensor, PCV valve, and cleaned the MAF sensor. Still getting the code, and need to get smogged soon, so I took it into the shop. He is going to test the fuel pressure tomorrow and says it MAY be a clogged catalytic converter.
What do you need to know about lean fuel condition?
Lean Fuel Condition – P0171. A fuel system lean condition can be broken down into three subsections: fuel pump performance, fuel quality, and injectors. A good starting point is to check the fuel pump assembly for pressure, volume, and amperage. It’s also important to check the fuel quality as the customer could accidentally pump E85…
Why do I have lean condition code on my car?
When the injectors on this engine were replaced, the wrong type of injectors were used. The black injectors are meant to be on a 3.8L non-supercharged engine, while the gray ones are used with the supercharger. This explains the lean condition code pulled when one cylinder misfired.
Why is lean condition code pulled on a 3.8L engine?
When the injectors on this engine were replaced, the wrong type of injectors were used. The black injectors are meant to be on a 3.8L non-supercharged engine, while the gray ones are used with the supercharger. This explains the lean condition code pulled when one cylinder misfired. This Pulling Codes case is now closed.