Need fuel mixture specs - Homelite Gas, 20 In. Bar, 46 CC, Chain Saw, UT10520

Sensors come in different qualities and pricings. Some cheap ones made in Mexico fail in a few days. Always buy OEM quality sensors.

Your code is incorrect fuel mixture, sensor says running lean so it is dumping extra fuel.

Fuel Trim System Lean Bank 1

The code is thrown when the oxygen sensors detect that there's not enough oxygen in the exhaust system. This is commonly referred to as a "lean" condition.
The vehicle's ECM will add more fuel to the mixture in order to bring the air fuel mixture where it needs to be for optimal combustion. It also throws the code P0171 to let you know that it has done this.


Here are the typical symptoms that something is wrong when you have code P0171.

• Mileage- may or may not suffer depending on how much the air fuel mixture has changed.
• Misfire- If the air fuel mixture has gotten too far from factory specs, this can cause the Sentra to misfire.
• Idle Issues- With the air/fuel mixture altered, the vehicle can idle erratically as the computer compensates to keep the engine running.

https://www.google.com/search?q=Nissan+Sentra+code+p0171

Ideally you need an auto electrician with a pro grade scan tool...

You most likely have an engine vacuum leak or a defective mass airflow sensor or low fuel pressure. Read the codes with a OBD2 code reader and see what the standard codes are.

Refer to your service manual.

You may contact the manufacturer, download manuals, check fuel/oil ratios, order parts, find your local service center, and view other resources using these links:

Contact us
User manuals
What is the correct fuel mixture for McCulloch products Chainsaw Trimmer...
McCulloch Service
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I trust this information has proven beneficial.

Your going to need a professional that can
figure out how to restore your very old vehicle
to OEM Specs,so you can pass inspection

buy a manual for it first as it will have all your specs and diagrams of the fuel system. clymer makes one for this motor.

There is no fuel mixture to adjust,this is done by the computer,the fuel filter might be the problem,or the injectors are in need of cleaning,use a treatment for the fuel such as luas,this will clean them ,and use less fuel as possible when added,if this does not fix the problem,have the fuel pressure checked the lean burn can be from weak fuel pressure from the fuel pump.

start by synchronizing your throttle plates. Honda calls the next step the "idle drop procedure". u need to know if you have fuel adj. screws or air adj. screws. fuel screws will be on engine side of carb slide, air screws will be on airbox side of carb slide. start leaning out mixture, (turn in fuel screw, turn out air screw. idle will increase so keep adjusting idle back to spec.after each turn if needed. Adjust about 1/4 to 1/2 turn at a time on each carb until there is no change in idle, then richen up mixture by one half turn. If u sync throttle plates first then follow this procedure, there should be no hesitation when you "blip" the throttle, and after revving it should return to idle smooth,

blown moter from bad gas mixture

Refer to your service manual.

You may contact the manufacturer, download manuals, check fuel/oil ratios, order parts, find your local service center, and view other resources using these links:

Contact us
User manuals
What is the correct fuel mixture for McCulloch products Chainsaw Trimmer...
McCulloch Service
McCULLOCH PARTS ACCESSORIES

I trust this information has proven beneficial.