[Pbforlife254]

Fixed

[TrollToll]

Inb4 "wrong oil and must be FOD"

[Grand_hustle17]

Hit them up and see if they replace under warranty.

[blaster3500]

I would check vac lines and possibly replace boost solenoids

[TrollToll]

Originally Posted by blaster3500

I would check vac lines and possibly replace boost solenoids

This.


What you're describing doesn't sound like failed turbos. It sounds like something on the vacuum side is leaking or solenoids aren't working. There's a good write up for testing the vacuum side.

[Pbforlife254]

I actually had my car pressure tested and smoke tested before I actually replaced the turbos. Shop said everything was good and no leaks. But why would the car run fine for a month and a half then all of a sudden take a dump on me again. Charge pipe is intact as well.

[Chris@VargasTurboTech]

Originally Posted by Pbforlife254

Well I guess all the Vargas horrror stories aren't a joke. I had purchased and installed oem spec turbos from Vargas. At first new turbos ran great. Got rid of my 30ff and wastegate rattle. Well fast forward about a month and half and here I am with wastegate rattle back and 30ff code popping up again. Can these turbos really already be shot? I have contacted Chris and we will see what happens.

Whoah!

First, remain calm. I just got back from the gym, got your PM and found this thread. I know car stuff can be stressful but calm minds prevail, always.

On to your problem. Let's address wastegate rattle first since it's easy. ALL N54 turbos can rattle if you hold the flapper just off of the housing. That doesn't mean anything bad necessarily. On the original OEM's, over time it meant something bad, because the materials were such that things wore out and the flapper no longer sealed and you couldn't build boost. Your wastegates are brand new and fine. Don't sweat that. All major tunes have the option to reduce wastegate rattle now (both MHD and JB4). Not a problem at all. Now if you had zero rattle and it's all of a sudden rattling like crazy, then I'm going to have you look more at vacuum lines.

The bigger problem is your 30FF, which is a classic boost leak code. Boost leaks can be very tricky to track down but the process is the same; pressurize the system and look for leaks.

The car ran fine for a while then started acting up because something let go -most likely a small connection leak, diverter valves, or a vacuum line. Or, like was posted above, possibly boost solenoids but I'd check everything else first. There are a million threads on silicone line replacement, diverter valve testing, charge pipe leaks, etc.

Boost leaks and vacuum line replacement/testing is a huge part of ANY turbocharged platform troubleshooting. Just take your time, go slow, and post questions here on what steps to take (take pics so we can see what it is you're doing). Logs can help too.

As I said in the PM, please email me directly at chris@vargasturbo.com and I can help guide you as you go through the troubleshooting process.

We'll get this squared away.

Chris

[YoungBlood]

could easily be out of adjustment WG's, vacuum leak, etc. My wastegates with 100k miles on them don't rattle after I adjusted them to close at the correct vacuum.

[JM98]

Originally Posted by Pbforlife254

Well I guess all the Vargas horrror stories aren't a joke. I had purchased and installed oem spec turbos from Vargas. At first new turbos ran great. Got rid of my 30ff and wastegate rattle. Well fast forward about a month and half and here I am with wastegate rattle back and 30ff code popping up again. Can these turbos really already be shot? I have contacted Chris and we will see what happens.

Guarantee its likely a turbo problem. If you look at the historical data on e90,n54, and ***********, all the turbo rebuild options are shit. Whish you the best, but I'm thinking those turbos are toast

[pits200]

You getting smoke, doesn't sound like it. You getting any accompanying codes with the 30ff?

As stated, it's the inherent nature of internal wastegates to rattle, just need to deal with it or as Chris said, use your tune to leave the gates slightly more open.

[Gohan335i7]

Hmm... hopefully not another VTT horror story...

[Jklad]

The rattle is probably related to the boost leak you are experiencing.

[Chris@VargasTurboTech]

I emailed pbforlife254 and gave some basic troubleshooting directions for him to start. As of this moment, he hasn't done any troubleshooting yet -just experienced the rattle and code pop up. I gave him enough to get him pointed in the right direction but since he has the car, he's going to have to do some homework. Luckily there are many threads on basics like how to to a boost leak check, how to replace vacuum lines, etc. We'll get to the bottom of this and drive it to resolution.

Chris

[Pbforlife254]

Well got around to the car today. Check out all vacuum lines, purchased and replaced boost solenoids, checked charge pipe and dvs. After all that still 30ff. I can floor it in 3rd gear and feel like I absolutely go no where.

[essex_lad]

Iv heard of things like this happening before where turbos have been replaced and then going again soon after. What people over look sometimes is why did the original turbos pack up, oil feed block is one of the common ones and if you have the turbos changed and don't fix the cause of what made them go in the first place then it will only happen again.

[pits200]

Turbos wouldn't bust to the point of no boost, I can guarantee thus is not a turbo problem.

Intercooler connection? You take a log?

[TrollToll]

Going to need to do a proper smoke test.

[Chris@VargasTurboTech]

Trying to help him narrow this down currently. He has no means of logging at the moment, which makes things more difficult, and is throwing a host of codes. See attached.

I'm advising him to make sure his battery is good, clear codes, see what comes back under gentle driving, take a log including target vs actual on boost so we can see what's up, but for actions I'm advising him to check/replace vacuum lines, and do a proper pressure test of the system. Car is a 2007 with 100k on it. I believe he just replaced the boost solenoids.

Chris

[Bully35]

did you clear the adapts after replacing the the solenoids ?

[Pbforlife254]

I'll be taking it to the shop in 2 weeks to see what the full problem is.

[Pbforlife254]

I did. Not reset adaptations after changing solenoids. Will try now.

[Pbforlife254]

What adapts should I be resetting?