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It's ***** *****, I have a 2015 Cummins 550 in my Peterbilt…

It's ***** *****, I...

It's ***** *****, I have a 2015 Cummins 550 in my Peterbilt with just 8500 KM on it, now shows code FMI:7 DPF Purge air actuator

Mechanic's Assistant: Thanks. Can you give me any more details about your issue?

I would just like to know if this code will de-rate my engine power before I can get it to a shop ?

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Answered in 9 minutes by:
3/20/2016
Technician: cumminsdr, Mechanic replied 6 years ago
cumminsdr
cumminsdr, Mechanic
Category: Medium and Heavy Trucks
Satisfied Customers: 4,480
Experience: All types of Cummins applications
Verified

Hi. This code will not derate you but the regen is disabled and could cause another code that may derate the engine for DPF plugging. Please don't forget to rate my service.

Possible causes of this fault include:

  • A stuck closed aftertreatment purge air actuator
  • Missing or leaking air supply line to the aftertreatment purge air actuator
  • Missing or leaking air supply line from the aftertreatment purge air actuator to the shutoff valve manifold.

Fault Code: 3225
PID:
SPN: 3490
FMI: 7

Aftertreatment Purge Air Actuator - Mechanical System Not Responding or Out of Adjustment. A stuck closed aftertreatment purge air actuator has been detected

Active aftertreatment diesel particulate filter regeneration will be disabled until the next key cycle.

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Customer reply replied 6 years ago
Ok, is there anything you can suggest I could look for or do to further diagnos this issue? Or just drive it..! Lol
Technician: cumminsdr, Mechanic replied 6 years ago

The aftertreatment purge air actuator is mounted on the left side of the engine above the aftertreatment fuel shutoff manifold. There is nothing you can check without the Cummins Insite program. I would get it to a shop at your earliest convenience.

cumminsdr
cumminsdr, Mechanic
Category: Medium and Heavy Trucks
Satisfied Customers: 4,480
Experience: All types of Cummins applications
Verified
cumminsdr and 87 other Medium and Heavy Trucks Specialists are ready to help you
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Customer reply replied 6 years ago
Ok great, thx for your help & I will rate your service excellent. Cheers
Technician: cumminsdr, Mechanic replied 6 years ago

Thank you.

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