00 − 046
UnclassifiedEmissions
What This Code Means
Engine unstable (hunts); Engine will not crank; Excessive exhaust smoke under load
Possible Causes
- •Blown fuses
- •Fuel supply issue
- •Fuel line leakage
- •Loose wire connection
- •Governor linkage binding
- •Incorrect governor adjustments
- •Incorrect carburetor float level
- •Carburetor debris
- •Low battery voltage
- •Loose or dirty terminal connections
- •Incorrect battery cable size
- •Starter drive engagement issues
- •Remote control issues
- •Faulty connections on PCB control board
- •Faulty start solenoid
- •Faulty starter
- •Intake air restrictions
- •Overloaded generator
- •Incorrect valve settings
Suggested Actions
- 1Check fuses
- 2Check remote control
- 3Check fuel supply
- 4Check fuel lines for leakage
- 5Check wire connections
- 6Check governor linkage for binding
- 7Check governor adjustments
- 8Check carburetor float level
- 9Check carburetor debris
- 10Check battery voltage
- 11Check terminal connections
- 12Verify battery cable size
- 13Check starter drive engagement
- 14Check connections on PCB control board
- 15Check start solenoid
- 16Check starter
- 17Check intake air restrictions
- 18Check for overloaded generator
- 19Check valve settings
ASK RUDY ABOUT THIS FAULT
Get a diagnosis walkthrough for 00 − 046 on your specific Onan unit — cited to the OEM manual, not a forum guess.
GET THE ANSWER
Free account required — we'll bring your question with you.