[Twinning_N54]

Looking for help with this dam engine code "30ff", I feel like I'm getting close but still so far away

Every time I step on the gas, I get the dreaded "check engine" power output reduced 30ff notice. I have been chasing this issue for a while now and it has been getting better, with the alert coming on further and further into boost

things I have added with the excuse of "FIXING" it

boost solenoids
cobb charge pipe
turbo smart BOVs
intercooler
vrsf outlets
upgraded PVC
OCC (why not)
and today I finally replaced the vacuum lines going to both wastegate
even the ones behind the OFH and all the ones on the passenger side.

I have a JB4 G5 ISO on the way and wanted the car ready for a "map 5" run


work done:
valve cover gasket
water pump/thermostat
radiator

What else can I do here? what else should I check? I plan on double checking the vacuum hoses since the front was a PITA to fit and maybe it's not seated right.... what else can I check? any input would be appreciated


keep in mind the alert only comes on under heavy throttle, normal driving (ie passing cars, normal acceleration etc..) there is no code

also, note my mpg is between 14-16mpg if that matters

thanks!

[TheMidnightNarwhal]

Ok, let me just get something straight. You've been throwing parts at it without even knowing what the actual codes are...? The codes you get under heavy load are stored in the car and will most likely help you go in the right direction.

You haven't listed them so I assume you have not read them?

[relative4]

Wow.

[IllSic_Design]

Even if the SES light isn't illuminated you will still have a code stored for what the malfunction was.

[Twinning_N54]

Sorry, I forgot to mention I did get a code read at a shop beforehand, it was 30ff low pressure. initially, it was attributed to a leaking bov.

I guess I figured with the age of this car, it would be something that I would eventually find while doing some upgrades. I was planning on doing the upgrades anyway.


I just read a person in the same exact situation.. turned out to be expensive lol... I'm hoping mine isn't at the turbos

Originally Posted by jakeadake

It turned out to be my turbos not sealing at the wastegate arms. Bit the bullet and just swapped in some used turbos that I rebuilt with new WG parts= no more 30ff even at stage 2+ MHD

[studio54]

Got 30ff only too when one of my wastegates stuck open, but if it's that you should feel it (slower car) and hear it (sound of the car became louder)

[Twinning_N54]

Originally Posted by studio54

Got 30ff only too when one of my wastegates stuck open, but if it's that you should feel it (slower car) and hear it (sound of the car became louder)

Did you get the code under normal driving conditions? the car does feel abit sluggish but that might just be in my head.

[Rube]

Originally Posted by Twinning_N54

Did you get the code under normal driving conditions? the car does feel abit sluggish but that might just be in my head.

Have you inspected for cracks and tested the vacuum canisters ?

[studio54]

Originally Posted by Twinning_N54

Did you get the code under normal driving conditions? the car does feel abit sluggish but that might just be in my head.

No no code if i didn't trigger it with a long WOT. Beside it sounded louder, i didn't feel it until WOT. In normal driving conditions (like not using, or just a bit of boost / one turbo was still working) the car felt normal.

[Twinning_N54]

So I finally found my leak... took it in for a boost leak test. Turned out it was my VRSF outlets; Specifically the pipe/turbo seal. I have reinstalled the OEM pipe and car drives like a bat out of hell now... Contacted VRSF and they are going to replace the defective pipe with an updated version. I guess I got an old faulty one. I might just sell off the VRSF outlets and use the cash for a set of inlets or walnut blasting..

[=C=]

My 30FF was caused by a small puncture in the stock FMIC. When I replaced the stock FMIC the issue went away.