L65 leaking fuel

Fuel leaks are diagnosed by pressurizing the fuel system and inspecting for the leak source. The fuel system can be pressurized by simply cycling the ignition key to the ON position; the fuel pump will come on for about three seconds to "prime" the lines, then turn off. The pressure will remain on the fuel in the lines so inspection can begin. Fuel leaks in the engine bay can originate from fuel lines, the fuel rail or fuel injectors. If the origin of the leak is not visible, it may be necessary to remove certain engine components to gain the necessary access. I find it helpful to locate the fuel injectors first, then follow the rail to the lines and keep working rearwards until the source is located. You can read more about fuel system leaks here: https://www.yourmechanic.com/article/symptoms-of-bad-or-failing-fuel-injection-lines

It's P0171 & P0174 not Pc 171 & Pc174 ! The engine computer has detected a lean condition ! That mean's it's not getting enough fuel or has a vacuum leak , bad O2 sensor ! fuel pump getting weak . fuel pressure regulator weak !
P0171 - System to Lean (Bank 1) The Adaptive Fuel Strategy continuously monitors fuel delivery hardware. The test fails when the adaptive fuel tables reach a rich calibrated limit. Refer to Section 1 , Powertrain Control Software, Fuel Trim for more information. Air Measurement System

• MAF sensor (contaminated, damaged, malfunctioning, etc.)

Fuel System

• Fuel pressure regulator (leaking, malfunctioning, etc.).
• Fuel filter plugged, dirty.
• Fuel pump (weak, check valve leaking, etc.).
• Leaking/contaminated fuel injectors.
• Low fuel pressure or running out of fuel.
• EVAP canister purge valve leaking (when canister is "clean").
• Fuel supply line restricted.
• Fuel rail pressure sensor (incorrect reading).

Air Induction System

• Air leaks after the MAF.
• Vacuum Leaks.
• PCV system (leak, valve stuck open, etc.)
• Improperly seated engine oil dipstick.

Exhaust System

• Exhaust leaks before or near the HO2Ss (exhaust manifold gasket, mating gaskets, etc.).

EGR System

• EGR valve tube/gasket leak
• EVR solenoid vacuum leak

Secondary Air Injection

• Damaged/malfunctioning secondary air injection system (mechanically stuck valve).
• P0174 - System to Lean (Bank 2) The Adaptive Fuel Strategy continuously monitors the fuel delivery hardware. The test fails when the adaptive fuel tables reach a rich calibrated limit. Refer to Section 1 , Powertrain Control Software, Fuel Trim for more information. See Possible Causes for DTC P0171. See Diagnostic Aides for DTC P0171

View Freeze Frame Data to determine operating conditions when DTC was set. Observe LONGFT1 and 2 PID(s). Refer to Section 2 , Adaptive Fuel DTCs Diagnostic Techniques for more information.

I have a homelite piston running in my Husqvarna edger . Most pistons for engines are all the same if the cc's are the same . they only vary in the gudgeon pin size and the location of the pin in the piston. So take your piston to a small engine wreckers and any piston that measurers the same ,looks the same will do the job. then get a new piston for the make that it came out off and it will fit.

engine hard to start smelling fuel first look under hood for signs leaking fuel lines if you raise hood get strong gas smell look for wet fuel leaks on top engine where fuel lines located.if see no leaks could have leak at fuel rails to fuel injectors.if see no leaks look under vechicle around fuel tank area look for fuel dripping.

P0171 VOLKSWAGEN - System Too Lean engine cylinder Bank 1
Possible causes- Intake air leaks
- Faulty front heated oxygen sensor
- Ignition misfiring
- Faulty fuel injectors
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Faulty Mass Air Flow (MAF) sensor
- Incorrect Positive Crankcase Ventilation (PCV) hose connection
P0455 VOLKSWAGEN - EVAP System (fuel vapor storage and control) Large Leak Detected
Possible causes- Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking

P0496 is not alisted code.
P0455 - Evaporative Emission Control System Leak Detected Gross Leak (fuel vapors)
Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors Possible causes - Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking

LOOK UNDER THE HOOD AROUND THE ENGINE FUEL LINES LEADING TO FUEL RAILS FOR PETROL LEAKS AND LOOK UNDER CAR AROUND FUEL TANK AREA.LOOK FOR LEAKS AT FUEL LINES.REASON VECHICLE NOT STARTING FUEL LEAK TAKING AWAY FUEL PRESSURE.FUEL LEAK HAVE TO BE AT THE FUEL PUMP FUEL LINES OR YOUR FUEL INJECTORS OR FUEL RAIL HAS A FUEL LEAKS AT THE O - RINGS.

P0455 - Evaporative Emission Control System Leak Detected (Large Leak). Possible causes - Missing Fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- Incorrect fuel tank vacuum relief valve
- Leak is in line between intake m

Possible solution - Retighten or replace fuel tank filler cap
- Replaced damage or leaking EVAP canister

check fuel inlet and return lines for leaks.also check for leaks at fuel pressure regulator and fuel injectors.