What do I mean by fault code spn-3490?

What do I mean by fault code spn-3490?

I see Fault code SPN-3490 FMI 7 / Aftertreament 1 Purge Air… Vocational, Technical or Tra… Vocational, Technical or Tra… I’ve been getting this error: SPN-2791 (FMI: 13) which is EGR out of Calibration I believe. I have also heard it could be a sensor needs cleaning. … read more Vocational, Technical or Tra… Hello.

What are the codes for the purge actuator?

The codes are SPN 3490 FMI I’m working on a 2016 Mack GU713. The codes are SPN 3490 FMI 12 and SPN 3490 FMI 7. Both codes are showing to be purge actuator related. … read more

What is the SPN code for Caterpillar J1939?

The Society of Automotive Engineers (SAE) developed the J1939 standards and SPN code terms have been assigned for specific parameters (component or system circuits) that diagnostic trouble codes (DTC) are associated with. Only the SPN numbers that are intended to be used on Caterpillar ® products are listed.

What is the Suspect Parameter Number ( SPN )?

The Suspect Parameter Number (SPN) is diagnostic fault code terminology found on some Caterpillar ® products using a J1939 CAN data link.

Where is purge air valve air supply routing?

Proper AFT Purge Valve air line routing. POSSIBLE FAULT CODES SPN 3490 FMI 7 Cummins Fault 3225 SERVICE PROCEDURE N13 with SCR The engine air supply is run directly from the manifold on a Bendix AD­IS dryer, used in all ProStars, and off the secondary air tank on all other units not equipped with the AD-IS dryer.

Where does the aftertreatment purge air supply line run?

Both configurations are shown below. The line runs up the driver side frame rail where it T’s off to the Aftertreatment Purge Air Valve, continuing on to a reducer fitting just below the valve cover on the driver side, from here it runs around the front of the engine to supply air to the Air Control Valve (ACV).