2020 RAM 2500 - DTC P227F

[Lift89]

I have gotten this code three times recently with the “service air filter” message.

I’m entirely deleted with DRD tuning, and I have a sinister cold air intake, billet valve cover, and CP3 conversion.

I’ve had these mods on for a while, and it hasn’t thrown that message/code until now.

Been talking to DRD, and they have no idea what’s going on.

I can’t find any restriction or leak between the filter and MAF.

Does anyone else have this code, and what was the fix?

I cleaned the filter and tightened all the clamps, but still no luck.

2020 Ram 2500 SO.


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[Chrisn162001]

Is the arrow on the maf sensor pointed in the right direction? (to the turbo)

Does it happen at full throttle or normal driving?

Try cleaning the maf and monitor grams/sec or lbs/min pids.

The readings should rise smoothly if the maf is good and no leaks/restrictions.


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[Lift89]

Is the arrow on the maf sensor pointed in the right direction? (to the turbo)

Does it happen at full throttle or normal driving?

Try cleaning the maf and monitor grams/sec or lbs/min pids.

The readings should rise smoothly if the maf is good and no leaks/restrictions.


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Yes arrow is pointed correctly.

Happens under heavy throttle.

I will clean maf and other sensors.

Not sure if my MM3 can read those pids, I’ll check.

I have been driving around with these mods for 2+ months with no issues.

Now all of a sudden I’m getting this issue.


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[Chrisn162001]

Yes arrow is pointed correctly.

Happens under heavy throttle.

I will clean maf and other sensors.

Not sure if my MM3 can read those pids, I’ll check.

I have been driving around with these mods for 2+ months with no issues.

Now all of a sudden I’m getting this issue.


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Is it an oiled filter or a dry filter?


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[Lift89]

Dry.

Now after cleaning all sensor with MAF cleaner.

The turbo is making a really weird noise.


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[Lift89]

MAF reading lb/min looks good, they increase gradually, and I don’t see any weird things.

I can’t find a leak anywhere.

And no other codes are being thrown.

But this new noise almost sounds like when your a kid, you took a blade of grass and put it between your lips and made that weird noise.

It kind of sounds like that under moderate to heavy boost/throttle.


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[AK Bob]

MAF reading lb/min looks good, they increase gradually, and I don’t see any weird things.

I can’t find a leak anywhere.

And no other codes are being thrown.

But this new noise almost sounds like when your a kid, you took a blade of grass and put it between your lips and made that weird noise.

It kind of sounds like that under moderate to heavy boost/throttle.

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I was wondering if perhaps you have an intake leak after the turbo.

I would do a pressure test with soapy water.




2014 RAM 3500 (Aisin) 3.73 4X4 Limited Crew Cab Long Bed DRW. MM3 Tuned by Double R Diesel. Oil Bypass Filter, Fuel Filtration Kit, and 50 Gallon Aux Fuel Tank.

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[Lift89]

Wondering if perhaps you have an intake leak after the turbo.

I would do a pressure test with soapy water.

https://uploads.tapatalk-cdn.com/202...ae8ebb6311.jpg


2014 RAM 3500 (Aisin) 3.73 4X4 Limited Crew Cab Long Bed DRW. MM3 Tuned by Double R Diesel. Oil Bypass Filter, Fuel Filtration Kit, and 50 Gallon Aux Fuel Tank.

I am taking it to a diesel performance shop locally at 1 pm my time.

I will keep you all updated.

I cannot find anything, but something is going on.

It was running tits for a few months, then popped the P227F code, and now making a weird noise under higher boost.

I am going to nip this in the butt before it gets worse.

I will keep all of you posted.


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[Lift89]

Update:

The shop got my truck all fixed up.

I had a leak in 3 spots.

1: boot on the turbo was loose/slipped.

2: boot on the pipe from the turbo connected to the intercooler slipped due to a failed clamp; somehow, it was folded over bent.

3: a leak from a gasket on the intake side of the motor behind the intake heater due to a missing bolt.

The funny thing about #3 is I haven’t messed with the intake heater or anything behind it, so that bolt was missing from the factory.

Or rattled loose.

All is good, and codes are gone, leaks are gone.

I hope this can help people in the future.


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