Cummins fault code · Intake throttle and air shutoff

Cummins fault code 5292

Excessive Time Since Last Engine Air Shutoff Maintenance Test: condition exists

J1939 SPN520809
FMI31
LampAmber warning lamp
SystemIntake throttle and air shutoff

What it means

Cummins' description: Excessive Time Since Last Engine Air Shutoff Maintenance Test - Condition Exists.

SPN 520809 is Excessive Time Since Last Engine Air Shutoff Maintenance Test. FMI 31 means the ECM has confirmed the condition described in the code is happening.

Some Cummins engines have an electronic intake throttle to help regeneration and a smooth shutdown. Others have an air shutoff valve that can stop the engine in an emergency.

What the lamp means

An amber (yellow) warning lamp means the engine can usually keep running, but the fault should be repaired soon, ideally the same day.

How serious is it?

Green, yellow, red: three ways this can look

The same code can be a quick fix or a reason to shut down. Match your situation to the closest example.

Green

Keep an eye on it

An informational code reminding you a shutoff test is due.

Yellow

Schedule a repair

Rough running, slow regens, or throttle codes that keep coming back. Have it cleaned or replaced.

Red

Stop and get help

Engine shuts down or won't start because the air shutoff is closed or stuck. It needs a technician on site.

Common causes

The sensor reading itself is out of range or the condition is real, so look at the system:

  • Throttle plate sticking from soot and oil
  • Air shutoff tripped and not reset
  • Air shutoff maintenance test overdue

What you can check before calling

  • Check whether the air shutoff has been tripped and needs resetting
  • Look for oil and soot buildup at the intake throttle

Clearing the code without fixing the cause usually brings it right back, and on emissions systems it can restart derate timers.

Engines and sources

Listed by Cummins for: QSB 6.7, QSL 9. Cummins uses the same fault code numbers across its electronic engines, including on-highway models like the ISB/B6.7, ISL/L9 and ISX/X15, though not every code applies to every engine or software level. Source: Cummins Tier 4 Fault Codes. Always confirm with Cummins service information (QuickServe) for your engine serial number.

Look up another code

Cummins fault code (like 1922), J1939 SPN and FMI (like SPN 3251 FMI 0), or an OBD-II code (like P0420).

Questions

What does Cummins fault code 5292 mean?

Cummins fault code 5292 is J1939 SPN 520809 FMI 31: Excessive Time Since Last Engine Air Shutoff Maintenance Test - Condition Exists. In plain terms: excessive time since last engine air shutoff maintenance test: condition exists.

Can I keep driving with Cummins code 5292?

Usually for a short time, if the engine runs normally and no other warnings are on. Get it diagnosed soon, because many amber codes lead to a derate if ignored. Look at the green, yellow and red examples on this page to judge your situation.

What is the SPN and FMI for Cummins code 5292?

SPN 520809 identifies the part or system (Excessive Time Since Last Engine Air Shutoff Maintenance Test). FMI 31 describes the type of failure: condition exists.

What usually causes Cummins code 5292?

The most common causes are: throttle plate sticking from soot and oil; air shutoff tripped and not reset; air shutoff maintenance test overdue.

Diesel down in the Midlands?

We work on Cummins-powered pickups, vans and medium-duty trucks across Lexington, Columbia and the Midlands, on site at your yard or roadside.

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