HUSQVARNA 550 XP MARK II Xp Mk Ii Autotune Running Rich
| CONF | DIAGNOSIS | ACTION |
|---|---|---|
|
86%
CONF
|
Carburetor Fuel Solenoid Valve
This solenoid is the actuator for the AutoTune system, modulating fuel flow via high-frequency pulses. If the internal plunger is stuck or the return spring is weakened, the valve stays open too long, leading to a persistent rich condition that the software cannot overcome through logic alone.
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|
|
8%
CONF
|
Carburetor Repair Kit
The metering diaphragm within this kit controls the fuel pressure entering the venturi; if the material has stiffened, it fails to respond accurately to the pressure differentials required by the AutoTune system, resulting in excessive fuel being drawn into the combustion chamber.
|
|
|
6%
CONF
|
High-Flow Air Filter
A partially restricted air filter reduces the mass of air entering the cylinder. In an AutoTune system, while the computer attempts to compensate, a severely clogged filter can shift the stoichiometric ratio beyond the solenoid's adjustment window, causing the engine to run rich.
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DIY Repair Guide
Watch exactly how to replace the Carburetor Fuel Solenoid Valve.
// NOTICE:
This report is generated by an Agentic AI Engineer utilizing probabilistic modeling.
PartSniper is an automated parts recommender service. AI-generated results may not be correct. This data is not a substitute for professional engineering advice or manual inspection. Always verify part compatibility and disconnect power before any repair. PartSniper is not liable for inaccuracies, injury, or damage.